PGDBA Interview Experiences – 2018-20

Name
Vignesh
College Name
R. V College of Engineering
Year of Graduation
2015
Degree and Specialization
Mechanical
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
35
Name of the Organization
Applied Materials
Questions asked in PGDBA interview along with your answers.
1) Which subject are you prepared for?
2) Write 7 independent 5 dimensional vectors?
3) Explain the physical significance of Eigen Values and Eigen Vectors?
4) What are similar matrices?
5) Why are you planning to join this course?
6) What is Ex-Im Bank?
7) What are its functions?
Any suggestion for aspirants regarding preparation for written test and interview.
Study one of your maths electives well. They might ask you to select a subject and get in depth during the interview.

For written test, revise the topics taught in Engineering Maths.
Name
Saurabh Dubey
College Name
Delhi Technological University
Year of Graduation
2016
Degree and Specialization
B-Tech, Mechanical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
21
Name of the Organization
Greenway Grameen Infratech
Questions asked in PGDBA interview along with your answers.
Upon being asked which area of mathematics I was comfortable in, I replied linear algebra. The following questions were then asked-
Q1) What are eigenvalues and eigenvectors associated with a matrix? Some followup questions about the geometric interpretation of eigenvectors.
Q2) What is the cayle Hamilton theorem? Write the characteristic equation of a given matrix.
Q3) A fairly straightforward problem on finding the unconstrained minimisation of a cubic equation.
Q4) Question on plotting indifference curves of lexicographic preferences.
This was followed by a 7-8 minute long discussion on unemployment in India and what factors affect unemployment in a country, with special emphasis on the role of technology.
Any suggestion for aspirants regarding preparation for written test and interview.
The course and by implication the entrance process expects a fairly strong math background. Be thorough with the basics of linear algebra, unconstrained optimisation and probability theory. It will be of great help in the interview as well as in the course.
Name
Aniruddha Mitra
College Name
Jadavpur University
Year of Graduation
2014
Degree and Specialization
Mechanical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
46
Name of the Organization
Tata Motors
Questions asked in PGDBA interview along with your answers.
A set of logical reasoning questions followed by counter questions.
Any suggestion for aspirants regarding preparation for written test and interview.
Keep it easy.
Name
Lakshmikanta Lahamodak
College Name
Jadavpur University
Year of Graduation
2014
Degree and Specialization
Production engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
47
Name of the Organization
Tata steel processing
Questions asked in PGDBA interview along with your answers.
1. Why do u want to come from manufacturing to analytics?
2. Difference between analytics and anlysis?
3. Basic questions on mean mode median ? Why 3 central tendecy needed and in which conditions u apply which one?
3. Asked about anova ..as I mentioned it while giving one answer.
4.extra curricular? Debate? Last topic u have debated .?
5.one particular questions about X bar R chart related ..
Any suggestion for aspirants regarding preparation for written test and interview.
Study probability and statistics and practice probability puzzles
Name
Abhishek Sharma
College Name
IIT BHU
Year of Graduation
2014
Degree and Specialization
Chemical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
46
Name of the Organization
Reliance Industries Limited
Questions asked in PGDBA interview along with your answers.
1. I was asked to solve a differential equation (not in PGDBA syllabus).
2. Questions were asked related to project at job. I explained my projects thoroughly
3. Asked to explain Decision tree and Logistic Regression?
I explained whatever knew about them. He asked how can the accuracy of Decision trees checked. I told root node error.
4. Application of Analytics in real life? I told about Google Maps and Retail Analytics
5.Whats your hobby and how can analytics be used there?
I told music is my passion. As a composer, I would like to compose in particular genre targeting section audience.
Any suggestion for aspirants regarding preparation for written test and interview.
Be thorough with 11-12 mathematics.
Be aware of current application of analytics and future scope.
If working in Analytics, go through the algorithms and techniques from basics and understand the mathematics behind it.
Name
Nitish kumar
College Name
NIT jamshedpur
Year of Graduation
2014
Degree and Specialization
Btech Metallurgy
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
46
Name of the Organization
SONY
Questions asked in PGDBA interview along with your answers.
1. As my name is Nitish, they started with Bihar politics, then moved on to other current affairs about things that were in news in recent days like 10 the CBSE paper leak and riots during ramnavmi etc.
This went for almost 20-25 mins.
Then 1 questions about why this course.
Then 1 question on maths – 1 solid cuboid , 1 ant has to go to body diagonal, then what will be the ants startegy to cover minimum distance.
Any suggestion for aspirants regarding preparation for written test and interview.
Although they didn’t ask me but for many people they had asked to select a topic. so be prepared for 1 topic.
Name
Nuthi Sri Gowtham
College Name
Andhra University
Year of Graduation
2016
Degree and Specialization
B.E/ECE
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
24
Name of the Organization
Infosys technologies
Questions asked in PGDBA interview along with your answers.
Gk questions- participating members of BRICS bank, location,etc. Who is commerce minister of India
Simple questions on probability, algebra.
Workex related
Most imp question- Why Pgdba, why not MBA?( It is ok to accept that you prepared for CAT exam, but be ready to defend your reasoning for your choice of joining pgdba)
Any suggestion for aspirants regarding preparation for written test and interview.
CAT level verbal ability questions
LRDI – basic questions testing your comfort with data
Maths- questions level is bit low till this batch, can expect same level even for next batches. Be thorough with with your 11 th, 12 th math textbooks. That will suffice.
Name
Rahul Mehta
College Name
BITS Pilani
Year of Graduation
2014
Degree and Specialization
B.E. (Hons.) Chemical Engg., M.Sc.(Hons.) Economics
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
47
Name of the Organization
Credit Suisse, Societe Generale
Questions asked in PGDBA interview along with your answers.
Difference between GDP and GNP: Mentioned
Pointing at a water bottle: What if I buy this in Dubai and drink it here? Will it contribute to GDP/GNP of India?:
It will contribute to Dubai’s GDP
Pareto Efficiency Curve?:
No idea
Numbers between 100 and 500 which are multiples of 13 and 17 but not both?
Answered (in a hassle though)
One of the interviewers tried to comfort me
Any suggestion for aspirants regarding preparation for written test and interview.
Written test: Quant: 11th-12th ncert books is a must, CAT advanced level if done, will be helpful, as there were some good questions this year
Verbal: CAT medium level prep material should suffice
LR-DI: CAT medium level prep material will suffice
Name
Harsh Harlalka
College Name
IIT DELHI
Year of Graduation
2016
Degree and Specialization
Btech in Chemical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
23
Name of the Organization
Icici Bank
Questions asked in PGDBA interview along with your answers.
Define percentile,ogive, flaw in using mean as it consider outliers, conditional probability questions, define normal distribution, basic differential and integral calculation. Only maths related questions were asked.
Any suggestion for aspirants regarding preparation for written test and interview.
Make sure basic of normal stats are very good.
Name
Adnan Tamimi
College Name
Aligarh Muslim University
Year of Graduation
2013
Degree and Specialization
Mechanical
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
52
Name of the Organization
Accenture
Questions asked in PGDBA interview along with your answers.
1- Tell me about yourself

This was followed by some cross questions on the project I was working in.

2- One of the interviewers wrote 3 random numbers on the paper and asked me to predict the next number.

3- What is a normal distribution? Write the equation and it’s CDF. Draw the graph. What is log normal distribution?

4- They asked my opinion on the Cambridge Analytica controversy and whether I think it was fair to use the users data in the way Cambridge Analytica did.

5- One of the panelists asked an open ended questions – Which is the best state in India ? (For such questions it’s important to use facts and figures and not personal opinions)

6- Write a program to sort an array of letters.
Any suggestion for aspirants regarding preparation for written test and interview.
Name
Rajnish Kumar
College Name
IIT BHU
Year of Graduation
2018
Degree and Specialization
Metallurgical Engineering
Work Experience
No
If Yes, then total Work Experience in No. of Months
Name of the Organization
Questions asked in PGDBA interview along with your answers.
My interview went on for 12-15 minutes.
Panel: Tell us something about yourself
– I had a well prepared answer
Panel: Why you want to join PGDBA?
– Again I had a well prepared answer. I told them that I love solving maths.
Panel: So you love maths. Can you solve this question.
– They gave me a simple algebraic expression and asked me to explain it’s continuity and differentiability. I answered it orally.
Panel: Can you solve it on paper using fundamental equations.
– I did it.
Panel: Gave a question on limits.
– I did it.
Panel: If you have so much love for maths, why don’t you go for PhD.
– Told that PhD is more of theoretical mathematics and what I love is problem solving.
Panel: Have you appeared for any other management examinations?
– I answered.
Panel: What is your plan if you don’t get selected in PGDBA?
– I told them that I got placed in one of the IT firm and would pursue that.
Any suggestion for aspirants regarding preparation for written test and interview.
First of all be original in the interviews. I didn’t had any prior experience in analytics still I manage to convert the interview. All you need is the zeal to pursue this course and you should be able to convey this to the interviewers.
Name
Sowrya
College Name
IIT Madras
Year of Graduation
2017
Degree and Specialization
Civil Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
5
Name of the Organization
Uber
Questions asked in PGDBA interview along with your answers.
1) linear algebra questions, basic system of equations questions
2) Questions related to Uber recent happenings
3) Questions related to our state politics( This was asked as I mentioned I follow news)
Basically expect maths questions and few general questions and they are very basic
Any suggestion for aspirants regarding preparation for written test and interview.
Score more marks in written test
Name
Prasanna
College Name
IIT Madras
Year of Graduation
2015
Degree and Specialization
Chemical dual
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
34
Name of the Organization
EXL
Questions asked in PGDBA interview along with your answers.
Some basic question regarding Maxima and minima .
I pointed the global Maxima and said it depends on the domainThey then asked me about some time series models and stochastic processes which I didn’t know.The last question was regarding women’s safety in Delhi and my understanding of root causes of the current situation.
Any suggestion for aspirants regarding preparation for written test and interview.
NCERT books should be enough for the written test .

For the interview be prepared with a resume and look at applications of analytics in any work experience
Name
Srustijit Sahoo
College Name
NITK Surathkal
Year of Graduation
2013
Degree and Specialization
B.Tech, Electrical Engg.
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
59
Name of the Organization
Tesco
Questions asked in PGDBA interview along with your answers.
1) Tell me about yourself.
2) Technical details about projects in the current organisation.
3) Why do you want to join this course.
4) Couple of questions on maths (number system).
5) Questions about Cambridge Analytica.
Any suggestion for aspirants regarding preparation for written test and interview.
Strengthen your +2 maths basics for the exam. Be honest and confident during the interview. Need to convince the panel that you are really interested in maths, stats and technology. Be updated with the latest news on Analytics around the globe.
Name
Sambit Behura
College Name
NIT TRICHY
Year of Graduation
2015
Degree and Specialization
B.TECH(EEE)
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
28
Name of the Organization
FIITJEE
Questions asked in PGDBA interview along with your answers.
Three panellist one from each instituteP1- Tell me about yourself

Me:Told about my college , my current job as maths faculty at FIITJEE

P2: Ok since how long have you been working? Which all places have you worked?

Me: I worked at RBS for 5 and half months and post that I have been working at FIITJEE for the past 2 years.

P2: Gave a 2*2 matrix A and asked me to find A^n

Me: Answered it correctly. It followed a pattern in which after finding A^2,A^3 the result could be derived.

P2: Find e^A from the derived result.

Me: Used series expansion of e^A and obtained the result.

P3: Do you know programming?

Me: Yes sir, I did some C programming during my B.Tech.

P3: When did you pass your B.Tech?

Me: 2015

P3: x+y+z=10, find number of integral solutions?

Me: Infinite

P3: How about positive integral solution?

Me : 9C2

P3 : How?

Me: Derived using multinomial.

P3 : What if the values that x can take are [5,10]?

Me: Answered using multinomial using the given constraints on x.

P3 :interrupted fine you are doing it right. Do you only teach combinatorics or Probability too?

Me: +2 level probability sir.

P3: Given a single unbiased coin , how can you have equal probability of selection of 3 of us(referring to the panellists) in an exam?

Me : I was struggling.

P3: Ok if I toss two coins what will the events be? ( It was a clue…)

Me: If we get

HH-P1 selected

HT-P2 selected

TH-P3 selected

TT-Coin must be tossed again

P2: How many times should we continue tossing again?

Me: Till we get a choice other than TT.

P3: Ok

P1: Any extra co-curricular activies you have done in state level or district level

Me: No sir

P3 and P2 : Ok best of luck for your results

Me: Thank you sir
Any suggestion for aspirants regarding preparation for written test and interview.
Start with ncert, cover all topics and do some excercise problems to gain confidence…..then buy an objective maths book,preferably with solutions,(Questions will be of AIEEE level)…if u face trouble in understanding concepts then u can buy cengage publication book for that section. For DI,LR,RC you can do from any CAT book.
Name
Amit Sudarshan
College Name
IIT Roorkee
Year of Graduation
2010
Degree and Specialization
BTech Mechanical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
60
Name of the Organization
Railways
Questions asked in PGDBA interview along with your answers.
Continuity and Differentiability of |X| by graph and first principle,also difference between these two concept, one question of ap,gp and hp,one question about tangent on a circle
Any suggestion for aspirants regarding preparation for written test and interview.
Focus on fundamentals of mathematics
Name
Adarsh
College Name
NIT Trichy
Year of Graduation
2015
Degree and Specialization
Electrical and Electronics Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
24
Name of the Organization
Latentview Analytics
Questions asked in PGDBA interview along with your answers.
Few Statistics questions.Otherwise related to work ex. Also there were few electrical questions
Any suggestion for aspirants regarding preparation for written test and interview.
Written : Brush up fundamentals of calculus , geometry , functions etc. questions are basic need clarity in fundamentals.
Name
Ankit Sahani
College Name
NIT Trichy
Year of Graduation
2015
Degree and Specialization
Mech
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
36.25
Name of the Organization
HUL
Questions asked in PGDBA interview along with your answers.
Functions, Calculus and Trigonometry
Any suggestion for aspirants regarding preparation for written test and interview.
Keep your maths base of 12th strong.
Name
Arshdeep Singla
College Name
Punjab Engineering College, Chandigarh
Year of Graduation
2016
Degree and Specialization
B.E. Electrical Engineering (Hons.)
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
23
Name of the Organization
Smart Cube India Pvt. Ltd.
Questions asked in PGDBA interview along with your answers.
What are eigenvalues?
Can the eigenvalues be a complex number?
Give examples of discrete distributions?
Identify whether the series is convergent or divergent?
Questions on graphs of modulus functions and some variations
Questions on engineering mathematics
Work experience based questions
Any suggestion for aspirants regarding preparation for written test and interview.
For written test I would suggest to go through the concepts of NCERT (11th & 12th).
For interview be prepared for questions on statistics and engineering mathematics
Name
Vanya Sinha
College Name
BITS Pilani
Year of Graduation
2015
Degree and Specialization
Information Systems
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
35
Name of the Organization
Oracle
Questions asked in PGDBA interview along with your answers.
My interview was a very HR-ish one – I suppose because my written test went very well.
1.     Tell us about yourself
(Best question to set the tone of your interview – I set up base about my interest in ML)
2.      Your work ex is in a completely different area , how do you connect this to data science?
I was very clear about my intention to switch fields and showed I knew what I was getting into.
3.      Tell us about your (undergraduate) Data Science projects
(This followed from my answer to the first question)
4.      Something you do for short periods of time is exciting but gets boring if you do it for a long term, debate against and for this motion.
5.      What do you understand by differentiation? What is continuity? What is a limit? A function which is not differentiable but continuous at 1 point? A function which is not differentiable but continuous at exactly 3 points?
6. Tell us about your extra-curricular activities.
Any suggestion for aspirants regarding preparation for written test and interview.
JEE level math for the written test and add basic probability and statistics to the syllabus for the interview.
Name
Karan Raj Chauhan
College Name
IIT Delhi
Year of Graduation
2018
Degree and Specialization
B. Tech. in Engineering Physics with minor in Photonics
Work Experience
No
If Yes, then total Work Experience in No. of Months
Name of the Organization
Questions asked in PGDBA interview along with your answers.
There were three interviewers on the panel .I was asked to tell me something about myself and what I want to do next (probably an icebreaker). While I was doing that, they read my CV and asked me about my 3-month internship in Taiwan and the work that I did there. Following that up, they asked me about one other project in depth that I did in Physics. (They didn’t ask me about other projects that were mentioned in the CV which were in relevant fields, like Data structures and another one in Analytics). Then came the part around which majority of the interview revolved. The professor in the middle said ,so you are from IIT Delhi. I should assume you have amazing skills in Mathematics.I said you can say that. The professor sitting on the left asked me about double derivatives, maxima-minima, limits, continuity of 4-5 different functions, each time giving a more complex function and tried to test whether I knew what I was saying and asked me to draw a few functions. But the questions were quite basic and he seemed happy with the answers. *Over to the professor in the middle*. He asked me if my degree had a probability course. I told him that it didn’t but I did a course in Probability and Stochastic processes for extra credits in third year. He asked me to write the probability density function, the cumulative density function of exponential distribution and then draw both of them. When I did that, he asked me what a memoryless process is. I told him that the future state of the process depends on the current state of the process and not the past states . He said that is not the description of a memoryless process. I tried to make him understand in a few different ways but he said no. Then the professor wrote a differential equation that I had never seen in my life. He asked me what it was. I could only answer that it was a linear homogeneous differential equation because beyond that I had no idea. He said it is a linear homogeneous differential equation but what is the name of the equation. I looked at it and tried to remember but in vain. Then he said, it must have been taught to you in the first year. I said it wasn’t taught. He said, it is simply impossible. You need to go back home and look at your notes. I couldn’t argue as it would look bad on my part. *Already sinking in my chair* *Over to the professor on the right* He asked me that you have played basketball on a lot of levels as mentioned in your CV, tell me name of one player. I was relieved that he didn’t ask the size of the court or the ball which I had mugged up the previous night.I said Kobe Bryant. He asked who is the greatest player of all time. I said Michael Jordan. He asked me to name one player playing in NBA who is from India. I answered Satnam Singh. Then he asked me to name one player from team India to which I answered Amritpal Singh and the interview was then over.The written test had more weightage as inspite of not performing very well in interviews, I was selected.
Any suggestion for aspirants regarding preparation for written test and interview.
Ace the written test and for the interview focus on everything that’s in your CV very well
Name
Guntur Prabhudev
College Name
IIT Kharagpur
Year of Graduation
2017
Degree and Specialization
Dual Degree in Ocean engineering and naval architecture
Work Experience
No
If Yes, then total Work Experience in No. of Months
Name of the Organization
Questions asked in PGDBA interview along with your answers.
Technical: Basic questions about normal distribution (parameters,area etc), mean, median, mode difference. Something related hypothesis testing which i don’t know then.
General: Why pgdba and why there is a one year gap after graduation. I was also asked about my hobbies.
Any suggestion for aspirants regarding preparation for written test and interview.
Answer the questions that you know for sure. Wherever you are unsure,don’t make wild guesses. For written exam and interview be well prepared with 12th maths of JEE entrance level.
Name
Anurag Saraf
College Name
IIT Bombay
Year of Graduation
2015
Degree and Specialization
B.tech Mech Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
33
Name of the Organization
TATA Steel
Questions asked in PGDBA interview along with your answers.
1. Was given a histogram of 10th class mathematics marks and asked to give basic inferences like reasons for deviation from normality.
2. Some basic questions about Bayes Theorem, basic probability and combinatorics.
3. Questions about Facebook, Cambridge Analytica Scandal which was the most popular news about Analytics during that time.
4. I told them that I am a guitar player, so they asked questions about how Analytics can be used to help musicians.
5. Question about why I wanted to leave my job at TATA steel and switch to analytics field. Some basic questions related to analytics like what is analytics, one example of analytics in  marketing field and descriptive and prescriptive analytics difference etc.
Any suggestion for aspirants regarding preparation for written test and interview.
LR and verbal section are usually easier than other competitive exams and if one has prepared for CAT, it will be more than enough to score good marks in these two sections. For Quant sections,  just buy a book of old JEE question papers and solve it.
Name
Suhaas.K
College Name
IIT Madras
Year of Graduation
2014
Degree and Specialization
Dual Degree (Electrical – Power Systems)
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
48
Name of the Organization
Swiss RE Business Solutions India
Questions asked in PGDBA interview along with your answers.
I had experience of working on statistical models with the actuaries in a Reinsurance firm. So, most of the questions were related to statistical modelling.
1)Case: In order to prevent fradulent bank transactions, what are the important features that you consider in your customer during your analysis?
2)Explain any statistical model that you have built/worked with?
3)Which distribution did you assume the data followed?
— It was an empirical distribution and explained its details.
4)What are monte carlo simulations, can you explain in detail?(Monte carlo simulations were used in the model.)And More questions related to the model and assumptions in the model.
5)Explain difference between Insurance and Reinsurance?
Any suggestion for aspirants regarding preparation for written test and interview.
In case you are mentioning about statistical concepts, make sure you know about the concepts thoroughly. If you are not so confident about any topic, dont mention them.
Name
Akhil Danam
College Name
IIT Madras
Year of Graduation
2016
Degree and Specialization
Electrical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
6
Name of the Organization
Merilytics
Questions asked in PGDBA interview along with your answers.
Basic Questions related to Electrical Engineering as I have done by B.Tech in Electrical Engineering and some questions on Statistics.
Q1. What is t-test ?
Q2. What is t- statistic ?
Q3. Some questions regarding the t-statistic formula and it’s parameters.
Q4. What is Normal distribution and it’s formula and it’s graph ?Be thorough with all the probability distributions.
Any suggestion for aspirants regarding preparation for written test and interview.
Practicing Previous year papers and the revising those concepts is enough for written test.
For interview, questions will be asked on the math courses present in your grade card.
Name
Soumik Mukherjee
College Name
Jadavpur University
Year of Graduation
2017
Degree and Specialization
Bachelor of Engineering in Electrical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
11
Name of the Organization
ZS Associates
Questions asked in PGDBA interview along with your answers.
Q1. In a scale of 1-5 please rate the panel
Ans. I replied saying that due to lack of information I cannot answer the  question. I can give an answer after the end of the interview
Q2. Tell me something about yourself
Ans. Standard reply giving some introduction about my background, education and work experience
Q3. What is a KPI (on a point mentioned in my form)?
Ans. Key Performance Indicator. Then a brief discussion ensued for about 2-3 mins about how I got introduced to the term and how do I use the concept of KPI in my work.
Q4. How do you handle missing data?
Ans. I said that since my work revolved around working with Pharma industry data and we relied on certain predefined business rules to tackle such situations
Q5. A following question on any statistical techniques to apply in such situation?
Ans. I answered saying that due to preservation of information, we would like to impute such missing data. Gave them some basic techniques like mean/mode imputation. I said I am not aware about other advanced techniques
Q6. Question on my job profile.
Ans. I gave a brief introduction to my work as a Business Analyst and nature of my client’s industry. Some brief discussion of we used data to solve certain Business question.
Q7. if m,n are integers and m>=2 and n>=1. Solve the equation m^n=n^m where m is not equal n
Ans. I said that without loss of generality, n>=2 follows. A typical solution would be m=2,n=4. Then I was asked to solve the equation and tell the number of solutions. I started with a reasoning that such solutions would have m/n= a(some integer). Then we could plug it in the equation to solve.
Q8. A simple problem on how many handshakes would take place in a room of 100 people
Ans. 100C2
Q9. They gave me a integral equation to solve on a function f(x) and unknown constant
Ans. I replied that we can use Leibnitz theorem on differentiating integral equations. Then solved the equation and arrived at the value of the constant
Q10. Why would I go for this course and not MBA?
Ans. I found this question difficult in the sense that any cliched reply didn’t work out
Q11. If I walked along the border of the 7 sister states, what are the states that I would encounter sequentially
Ans. This question was asked as I had mentioned quizzing as one of my extra-curricular activities
Any suggestion for aspirants regarding preparation for written test and interview.
1. Be very sure about what you write about your work experience in the Interview application form
2. Have a very convincing answer to the question of choosing Analytics as a field of study
3. Have the concepts of maths till +2 level cleared well. Also for people having a work experience in Analytics, be aware of the mathematical foundation of any modelling techniques you implement in your job.
Name
Suryawansh Kumar
College Name
NIT Durgapur
Year of Graduation
2014
Degree and Specialization
B. Tech in Electrical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
46
Name of the Organization
Trident India Ltd
Questions asked in PGDBA interview along with your answers.
Q. 1- Tell me about yourself
A1- Everyone has a different answer for this question.I spoke more about my job.
Q. 2 – Any specific reason to join this course?
A2- I explained the panel about my inclination towards mathematics.Q. 3 A graph was shown to me and I was asked to identify the function.
Ans- I answered them correctly as sin|x|
Q. 4 One of the panel member asked me about normal distribution and its curve.
A. 4 – I answered about it correctly.
Q. 5 A qustion on an integration consisting of modulus and greatest integer function was asked to me.
A. 5 – It was a conceptual question and function was linear in nature
Any suggestion for aspirants regarding preparation for written test and interview.
Just brush up your basic in mathematics .The panellist really check your fundamental knowledge . Do solve previous year paper of PGDBA,a lot of similar questions from past papers were asked.
Topic – Matrix, Probability, Calculus for math, Reasoning was easy and doable although VA level is at par with CAT VA.
Name
PRATIK SINHA
College Name
V.I.T VELLORE
Year of Graduation
2015
Degree and Specialization
Mechanical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
31
Name of the Organization
TresVista Financial Services,159 Solutions,LatentView Analytics
Questions asked in PGDBA interview along with your answers.
1. What were your Roles and Responsibilities in Organizations
And:- LatentView Analytics :- Worked for an E-Commerce Client making prediction model for customer churn out analysis
159Solutions:- Provided end to end Analytics support to a major Pharmaceutical company dealing in Oncology and General Flu department
TresVista Financial Services:- Provided end to end Analytics support to Financial clients across diverse portfolios.
2. What is the Motivation behind joining the PGDBA course .
Ans:- Wanted to gain more Statistical knowledge (i.e. Algorithm and the AI knowledge) for which the course was a perfect fit.
3. Asked General Questions on Data Cleaning related to the models built up in the Organization
4. Asked Mathematical Questions related to Number of Roots and their Nature in a polynomial equations with the help of Graphs.
5. Asked Questions related to Eigen Value and how it is calculated for a matrix
6. Besides some General Knowledge questions related to the city I worked in were asked (i.e. the political affiliation of the CM, The name of the current Mayor etc.)
Any suggestion for aspirants regarding preparation for written test and interview.
Written Test :-
1. CAT preparation + JEE Mains questions will be sufficient
2. Accuracy in the written exam matters a lot.
Interview :-
1. Be thorough with hygiene questions
2. Have Knowledge of Linear Algebra(Basic Questions) and polynomials(i.e. Graphs) and General Distributions(i.e. Binomial and Normal)
Name
Asrith
College Name
IIT Bombay
Year of Graduation
2017
Degree and Specialization
Engineering Physics
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
11
Name of the Organization
HCL
Questions asked in PGDBA interview along with your answers.
My questions were from Linear Algebra and Neural Networks
Any suggestion for aspirants regarding preparation for written test and interview.
Name
Vyshali Nanda
College Name
IIT-BHU(VARANASI)
Year of Graduation
2016
Degree and Specialization
IDD – CERAMIC Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
13
Name of the Organization
CERA SANITARYWARE LTD.
Questions asked in PGDBA interview along with your answers.
1)Explain glass ceramics and difference between glass and glass ceramics. 2) Behavior of glass at very high temperature as well as low temperature 3) basics questions on linear algebra
Any suggestion for aspirants regarding preparation for written test and interview.
Prepare 11th and 12th maths well and your core subjects (optional)
Name
Sourav
College Name
Guru Gobind Singh Indraprastha University,New Delhi
Year of Graduation
2018
Degree and Specialization
Electrical and electronics engineering
Work Experience
No
If Yes, then total Work Experience in No. of Months
5 months Internship
Name of the Organization
Urbanclap – Gurgaon
Questions asked in PGDBA interview along with your answers.
1) Questions related to engineering mathematics( like Taylor, Fourier,Laplace).
2) Linear Algebra, Matrices(eigenvalue, eigenvector).
3) Probability, Polynomial equations and functions( like – modulus, exponential and their graphs )
3) Questions related to my internships, summer training, hobbies.
Any suggestion for aspirants regarding preparation for written test and interview.
Name
Garima Arora
College Name
Delhi Technological University
Year of Graduation
2016
Degree and Specialization
B.Tech Computer Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
24
Name of the Organization
Thesqua.re and AppRevelations
Questions asked in PGDBA interview along with your answers.
1. Introduction
Work-Ex and Startup:
2. Current Work and general overview of projects worked on in the past after graduation
3. How will you incorporate the knowledge of data analytics to boost your app. Name one statistical key in your sourced data that you can use for this
Statistics:
4. Mean, median, mode. Describe one thing thats special about each of them.
Linear Algebra:
5. In linear algebra, what do the eigenvalues represent?
Computer Background:
6. Is it possible to have an unbalanced subtree in binary trees? In what situation would a tree be completely unbalanced?
7. What are tries?
8. What is the difference between Binary Tree and B-Tree?
General:
9. Which places have you visited in Delhi?
10. What is the Red fort made of?
11. Who built the Jantar Mantar? What kind of a monument is it?
Any suggestion for aspirants regarding preparation for written test and interview.
Name
Akash
College Name
IIT Kharagpur
Year of Graduation
2015
Degree and Specialization
B tech mining
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
35
Name of the Organization
Tata Steel
Questions asked in PGDBA interview along with your answers.
1.Tell me about yourself ?
Ans : Mentioned about my academics , job , extra curricular activities and my hobbies.
2 .  Some unexpected questions from iim calcutta prof , he asked me who is the governor of west Bengal (didn’t know) and he asked me who is foreign minister(answered it) , forest minister(No idea about it) ,
3.Some trivial questions from IIT kgp prof , he asked about whats the difference between permutation , combination . Gave me a small problem on permutation and combination. Asked me to give one real life example where you might use permutation and combination
4.Last person to ask was ISI prof , he first asked some core analytic question of which i had no idea , I said i have no  analytics background and i have no idea of
about it . He asked me the usage of analytics in my company , i did answer this question
Any suggestion for aspirants regarding preparation for written test and interview.
Be thorough with the ncert books for written test (maths)
There are some questions which you can expect in the interview ,  such as
i) Tell me about yourself
ii)Why pgdba ? Why not cat?
iii)Have you used analytics in your work ? ( if you are from non -analytics)
so be prepared well before hand for such questions
Name
Suhas Powar
College Name
IIT Kanpur
Year of Graduation
2015
Degree and Specialization
BT-MT Dual Degree Mechanical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
32
Name of the Organization
Reliance Industries Limited
Questions asked in PGDBA interview along with your answers.
Q1. After telling interviewers that my interest in machine learning started  when I was in 5th year , I was asked why did you join reliance if you already had interest in ML.

Q2. What is primary  difference between c++ and python, as I had told them in the start that, I had experience in Matlab and python.

Q3.  Some questions on PnC , how many ways in which you can arrange 5 men and 5 women in group of 5 such that number of women are always greater than number of men.

Q4. Linear algebra questions , how can you calculate determinant of a symmetric matrix without calculating adjoint of the matrix.
Any suggestion for aspirants regarding preparation for written test and interview.
You should be very well prepared about what are the things you are going to say in  tell us about yourself question. Interviewers pick the points from your answer and try to check your knowledge in those points. Interview panel consist of 3 members one each from ISI,IIMC and IITKgp. Iimc member may ask you some stress questions, other two members focuses on technical questions.
Name
Rajath Nandan
College Name
IITM
Year of Graduation
2016
Degree and Specialization
Dual Degree in Chemical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
22
Name of the Organization
Dr. Reddys Laboratories
Questions asked in PGDBA interview along with your answers.
The panel consists of 3 people, one Prof from IIMC, one from IITKGP & one from ISI Kolkata.
Q: How did you prepare for this interview
A: I told them I looked up basic Prob Stats & some Linear Algebra.Upon hearing this the IIMC prof took the grade sheet & asked some questions about the courses that did during my graduation
Q: What did you learn as a part of this course & asked a couple of questions from the content  (Panel asked the same for 3-4 courses which comprised major part of my interview. They were interested in Math, Finance, data analytics & optimization related courses)
A: I did those courses 3-4 years back & I told them whatever I remembered about the outline of the courses. I was frank with if I couldn’t recollect or answer any specific questions related to the content.
Q: Asked about the work I did at Dr. Reddys (IITKGP prof)
Q: What is the difference between process patent & product patent (Work experience related – IITKGP Prof)
Q: Basic questions in Linear Algebra about Eigen vectors
Q: Gave some data & asked me to find the expectation
Any suggestion for aspirants regarding preparation for written test and interview.
For Interview:
The interview was mostly technical. Read some basics of Linear Algebra & Prob Stats. If possible please go through the outline of all the important Math, Prob or Finance, data analytics, optimization related courses that you did during your graduation. If you have work experience in analytics, they will grill you on that.
For Test:
Verbal, DI & LR : CAT preparation will do
Quant: Prepare for all the topics mentioned in the syllabus at JEE Mains level
Name
HAREESH ADDANKI
College Name
IIT-BHU
Year of Graduation
2013
Degree and Specialization
B.Tech,Chemical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
48
Name of the Organization
Ambuja Cements Limited
Questions asked in PGDBA interview along with your answers.
City: Banagalore
Slot: Afternoon
Panel:3 (let them say as P1,P2,P3 )
Duaration-25-30 minutes
Work ex: 48 months in Ambuja cements Limited as Deputy HOD(Production Dept.)
I am the first one to enter after lunch, just after entering into the room P2 asked
Q1-Name any 4 chief ministers of North India,
I somehow remembered and answered the same
Q2-Next tasking me the most common Question Introduce Yourself, I told about myself and stressed about my work experience an about my achievements during job. It took 3 -4 minutes for introduction. P1 asked me about one specific achievement which I received from my CEO. I told them that I did some optimization on operation parameters which resulted in energy saving, and I conveyed the same in terms of savings resulted to organisation in terms of rupees. Then the P3 asked me how I did the optimization in process parameters asked me to explain the whole thing, how the analysis done and ow I took the decisions on the basis of analysis.  This discussion went for 20 minutes which I explained on the board with all the calculations
Q3- why do we want to select you for this course by p2(middle one)
I answered them saying my peers will be benefitted from my work experience in manufacturing industries.
Q4-Asked about my Managerial role and the composition of my team
Conveyed the same
Q5-what are the subjects that are taught in PGDBA?
I said that I had gone through the website and I did not remembered the names of the subjects and told about some statistics will be taught to us.
Any suggestion for aspirants regarding preparation for written test and interview.
Be confident and  even if you do not know some of the answers dont bluff them and  politely  say that you did not remember the answer and maintain positive attitude ,confidence throughout the interview.
Name
Kolli Kiran Kumar
College Name
IIT Kharagpur
Year of Graduation
2015
Degree and Specialization
Dual Degree ( Visual Information and Embedded Systems)
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
35
Name of the Organization
Optum
Questions asked in PGDBA interview along with your answers.
1)Basic solving of a quadratic equation.
2) why do you want to join this course
3) Shortest path in which an ant can travel in a room
Any suggestion for aspirants regarding preparation for written test and interview.
Name
Prem Potabatti
College Name
Walchand College of Engineering Sangli
Year of Graduation
2015
Degree and Specialization
Mechanical
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
33
Name of the Organization
Tata Technologies; Connection Loops
Questions asked in PGDBA interview along with your answers.
I don’t remember the exact questions, but they were asked more or less on the same lines.

It was a 3 member panel. I guess they were each from ISI, IIT and IIM (one of them was definitely from ISI) but I am not entirely sure.

First Panelist: Why Data Science?
Me: Sir, I am working on various different things right now like C++, Web development (ASP.net, MySQL, Javascript, Bootstrap and Materialize), Descriptive analytics and I also look after client interaction part for our startup. I want to get a formal and structured training in one discipline and master it. And I have seen the potential of Data Analytics during my work. That is why I want to pursue this course.

Second Panelist: Can you solve this problem?
Me: (It was a problem on limits. It was a tough problem for me) Sir, may I take some time? (He said sure. I tried but I could not solve it.) Sir, I am not able to solve it. But I can guess the answer (and I told him my approach)

Third Panelist: So, Prem you are National Diver?
Me: No, sir International diver. I represented India.

TP: Oh nice. Where did you represent?
Me: 5th AASF Games, Jakarta Indonesia

TP: Okay Prem so tell me the agricultural situation in Maharashtra.
Me: (Told him various crops that are famous in various regions of Maharashtra)

TP: How can you apply data analytics in field of agriculture??
Me: I told him an Image application. He countered me with some problems to my solution. I told him solutions to them (atleast I tried to).

TP: Okay, Prem Thank You.
Any suggestion for aspirants regarding preparation for written test and interview.
PGDBA does not check only your technical prowess. It demands your ability to apply the knowledge for Business. And I would say Interview is very very important to demonstrate this ability. So prepare well for the interview if you get the call.
Name
A.Abhishek Prithvi Teja
College Name
IIT ROORKEE
Year of Graduation
2012
Degree and Specialization
Pulp and paper technology
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
26
Name of the Organization
HIL Ltd
Questions asked in PGDBA interview along with your answers.
Some calculus questions based on graphs
Any suggestion for aspirants regarding preparation for written test and interview.
Name
Chaitanya
College Name
NIT Rourkela
Year of Graduation
2015
Degree and Specialization
Electrical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
30
Name of the Organization
MathDunia
Questions asked in PGDBA interview along with your answers.
mathematics: linear algebra, differential calculus (checking the continuity of a function at a given point).
others: why do you want to pursue this course? why not other courses?
Any suggestion for aspirants regarding preparation for written test and interview.
you might not have a lot of time  with the interviewers. Give them a reason to choose you and why you are good fit to the course.
For each answer you give, be prepared for follow-up questions. All the best 🙂
Name
Parkavi P
College Name
Sri Shakthi Institute of Engineering & Technology
Year of Graduation
2015
Degree and Specialization
B.E., ECE
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
29
Name of the Organization
IMS Learning Resources
Questions asked in PGDBA interview along with your answers.
My interview started off with the standard tell me about yourself and my well rehearsed answer.With the unimpressive resume that I had, I couldn’t talk about my work experience or academic excellence. Instead, I spoke at length about my personality traits and aptitude that make me a natural fit for analytics and ended with my motivations for joining PGDBA.

Around this time, having gone through my file, one of the interviewers saw that my work experience had not remotely anything to do with analytics or data science and asked my how they tied together.

I admitted that they didn’t, that over the years, I had made some decisions and if I could go back and do it all over again, I would not make the same choices and that, I was looking for a second chance.

Then they asked me how good I was in Mathematics and if I remembered anything from the course ‘Probability and Random Processes’ I had studied in UG. I said that I was above average and optimistically, good and no, I did not remember, but I had been revising some of the concepts. Then they asked me to solve the puzzle on the white board (It was a 4X4 grid where you had to calculate the number of paths from the lower left corner to the top upper corner). I had already come across that before and told them, and solved it on their insistence upon which I was given further cases on the same grid that I was able to solve.

Then, a brief discussion about why I shouldn’t pursue PhD instead of PGDBA ensued (I answered I would, after the course), concluding the interview. The interview time was about 8-10 minutes.
Any suggestion for aspirants regarding preparation for written test and interview.
Studying and practicing +1, +2 NECRT Mathematics books and solving the previous year question papers would suffice for the written test.
About the interviews, they just want to make sure that you are truly interested in the course. Just be honest and explain your motivations for the course.
Name
Vikas Rai
College Name
Indian School of Mines Dhanbad
Year of Graduation
2014
Degree and Specialization
Mechanical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
46
Name of the Organization
Tata Motors Ltd.
Questions asked in PGDBA interview along with your answers.
Pre Interview process
My interview was scheduled on 1st April 2018. All documents were checked such as mark sheets and work experience certificate. There were 2 panels, each comprising of 3 faculty members belonging to each institute IIM Calcutta, IIT Kharagpur and ISI Kolkata.
I was 2nd last to be interviewed by panel.
Faculty 1 (IIT KGP): Tell me about yourself.
Answer: I answered as I had prepared.
Faculty 1 (IIT KGP): You have scored 9 pointer in fluid mechanics. Tell me about viscous effect in fluid. What is its formula? What is turbulent flow?
Answer: I could not answer this question. There was also follow up question on this but I could not answer it.
Faculty 1 (IIT KGP): What is Magnus effect?
Answer: I didn’t know but when he told it is about spinning of ball, I answered it correctly. It is based on pressure difference of Bernoulli Theorem. This is responsible for lift of Aeroplane wings and also used in Formula1 cars. This is also used in our vehicle bonnet and Aero Corner Design.
Faculty 2(ISI Kolkata): He asked a probability question like A and B are tossing dice repeatedly. A wins with 1/6 probability and B wins with 5/6 probability. A starts throwing dice. What is the probability winning of A.
Answer: It was easy answered it correctly.
Faculty 2(ISI Kolkata): It was linear algebra question using this formula (a+1)(b+1)(c+1)+1. Faculty asked What is sum of (a+b+c).
Answer: I did not answer it correctly. Faculty helped me with each step for correct answer.
Faculty 3(IIM Calcutta): He asked, Am I interested in current affairs?
Answer: Yes
Faculty 3(IIM Calcutta): There is some flood relief plan going by government, which are the states covered by them?
Answer: I answered Punjab, but he was asking more recent, U.P Government had also relieved farmers recently. Faculty then told me that It seems like you watch less news, which I agreed.
Faculty 1(IIT KGP): Asked me that they are finished. Do you want to ask anything?
Answer: I had to stretch a longer, so asked about How degree is awarded in these 3 institutes.
Faculties answered.
Faculty 1 (IIT KGP): Have you worked in TATA Technologies Analytics Division?
Answer: I said no.
Faculty 1 (IIT KGP): Is Girish Wagh Still at TATA Motors?
Answer: This was last question/chance so I elaborated How Girish Wagh is changing business, how he is leading business. Some of his recent initiatives.
Any suggestion for aspirants regarding preparation for written test and interview.
It does not matter whether you know analytics or coding at this stage, focus on maths topics and your core subjects.
Name
Shilpi Jaiswal
College Name
IIT(ISM) Dhanbad
Year of Graduation
2015
Degree and Specialization
B.Tech ECE
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
34
Name of the Organization
OFSS Mumbai
Questions asked in PGDBA interview along with your answers.
Characteristic equation, eigen value, eigen vector
Some basic probability questions, question on application of remainder theorem
Determinant, inverse, rank of a matrix
Do u know about Cambridge Analytica & questions related to that
Questions related to my job
Any suggestion for aspirants regarding preparation for written test and interview.
Study basics of probability, statistics, linear algebra well and also go through current affairs.
Name
Avi Sharma
College Name
Galgotias College of Engineering and Technology
Year of Graduation
2013
Degree and Specialization
B.Tech- Electrical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
52
Name of the Organization
Larsen & Toubro
Questions asked in PGDBA interview along with your answers.
Place of Interview: New Delhi
Panel of 3( each of them representing respective institutes), interview lasted around 20-25 minutes.Q1: Given to solve a definite integral question
Q2: Given a set of equations with modulus operator and asked to find minimum and maximum values of independent variable.
Q3: Asked to find optimal solution of  set of linear inequalities – Solved using graph
Q4 : Asked to state pdf of poisson distribution and explain its application- I did read about basic statistics including probability distributions( khan academy videos are a good start for that)
Q5: Asked about Laplace transform- Couldn’t answer (didn’t prepare, I guess question was asked since I am from electrical background and concepts like Fourier series, Laplace, Z- Transform  are used extensively there, didn’t anticipate that questions regarding these can be asked too).
Q6: Asked about the work experience at LnT, and stuff related to my family business in which I was involved briefly.
Q7: Asked about controversy around Cambridge Analytica ( burning issue at the time of interview ) – Answered with detailed information and also my personal views on the situation.
Q8: Asked about my hobbies, with related general awareness questions, and interview panel collectively trying to have fun with me. Answered most of them in the same spirit, ending the interview on a light note ( one of the interviewer asked a trick question about my hobby, I caught the obvious trick, and told politely that i know its a trick question, answered with a smile and left the room with the panel in splits.)Overall difficulty level experienced : Moderate.
PS- No question was asked related to any knowledge of programming packages like R and Python.
Any suggestion for aspirants regarding preparation for written test and interview.
Name
Kanishka Kayathwal
College Name
IIT Bombay
Year of Graduation
2014
Degree and Specialization
Btech Chemical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
44
Name of the Organization
Fractal Analytics
Questions asked in PGDBA interview along with your answers.
1 Math puzzles and basic probability questions
2. SVM Classifier
3. Supervised vs Unsupervised Learning
4. Confusion Matrix and why accuracy is not a good measure for imbalance data
5. WPI vs CPI index
6. Any economic event which pose a  danger to global economy and its impact on india
Any suggestion for aspirants regarding preparation for written test and interview.
Focus on Calculus for written paper and for interview people with analytics background are expected to know basics of machine learning
Name
Amit Bikram
College Name
NIT Trichy
Year of Graduation
2014
Degree and Specialization
Mechanical Engineering
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
38
Name of the Organization
TechnipFMC India LTD
Questions asked in PGDBA interview along with your answers.
First they asked me make the interview interesting: To this I started telling them about the automotive competition I took part in and then stated my interest about geopolitics for which they asked a couple of questions. I answered all them to the best of my ability.
Then I received some questions on calculus and Fourier series. I don’t quite remember the questions exactly but those questions were all of conceptual type and required a bit of algebraic manipulation.
Then I received certain questions on autonomous vehicles(I stated automobiles as my special interest) about the sensors and workings etc.
So as a whole the interview comprised of 80% questions on calculus and algebra and remaining 20 % on personal interest.
There were no questions on job experience.
Any suggestion for aspirants regarding preparation for written test and interview.
Keep your fundamentals clear on topics such as calculus, linear algebra, and plots of functions.All they are looking for is mathematical aptitude and awareness around the world.
Keep calm and stay focussed. Don’t let yourself get carried away with their facial expression. Be confident about whatever you say.
Name
RAKESH KUMAR
College Name
ISM DHANBAD
Year of Graduation
2016
Degree and Specialization
B.TECH MECHANICAL
Work Experience
Yes
If Yes, then total Work Experience in No. of Months
22
Name of the Organization
Tata motors
Questions asked in PGDBA interview along with your answers.
Math olympiad
Bayes theorem
Statistics used in company – answered using 6sigma tools.
Graph of some complicated quadratic function.
Any suggestion for aspirants regarding preparation for written test and interview.

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