Kgp Crunchhhhh….!!!! My student life @IITKgp.:)


I joined Indian Institute of  Technology, Kharagpur as Post-Grad in the academic year 2010-11. In a month I will be passing out from this stupendous IIT. I would like to share student life I spent here , which I feel most valuable days for my life..

Main Building, IIT Kharagpur- My heaven and A sacred place of India

      An IIT creates environment where one can just open up feathers to fly to the height of the sky, unleash themselves to make their best in life. The Institute provides a plenty of opportunities for one to grow in all best aspects of life. One should be keen, smart and intellect enough to make the best out of these opportunities. I feel great to be a part of this great institute is a life time opportunity. It changed me and my life significantly  and has made me realize my strengths and values. Institute has a great powers to bring significant change ones life making it more competent and rewarding. I may sound very partial to the one sees IITs only in the perspective of its placements to get opportunities of lucrative job to add materialistic values to life. I have predilection towards capability of IIT life and environment to strengthen one mentally to confront challenges in real life than making making only theoretically knowledgeable. In deed, important for one to survive in this competitive world.

   I am very socializing and friendly being, always like to make many more friends and that is what I asset ‘Friendship’. I have learned a lot into my life from my friends at IITkgp. Friends take a major role in what am I today. They make best part of my life at Kharagpur.

   Also I like to remain as very active person in all my surroundings and to leave a remark of my existence. The inherent nature of mine made to take up few responsibilities at IIT campus life and in turn contributed much into my career path.

When I came as a fresher to the Insti, I am almost nothing, other than having lots of dreams in life to fulfill about my engineering profession and responsible human being to the society (as a daughter, student and a social being). IIT gave me all the opportunities to make them all true and filled me with all positive thoughts to make my dreams come true. Institute provides an environment, successful enough to take out the best out of one.

Then I just started making friends without whom we can’t survive anywhere on this Earth. Trust me..its very tough to find a friend in this competitive place in beginning , it takes time..!!! I used to miss family, friends from home town a lot..!!home sick for some days.. But always pretend as I am happy in new place to my family, otherwise parents start worrying..:) In this part of stay only Fresher parties, a change in life, life style, new culture, new environment kept me busy along with my studies. Spending all study time in Central library of the institute and rest of the time either in room or classes..I don’t even know to ride a cycle. Only I know how much I used to miss to roam all around this huge campus..Ya.. I learned to ride cycle in our DP(Durga Puja) vacation with the help of my neighbor and friend Swetha. Like this a semester passed on..

After first semester I could find some friends for myself… Sheela, Sakshi, Santosh, Sanyam, Vasudev, Guru, Swetha and Rucha are the best to mention here.Along with friendly classmates..Also friends from Robotix society TRS at IITkgp., Kannada group,IITkgp, MT hall (my hostel) boarders,my seniors. These people  made life more interesting at IIT. I had learnt cycling as well..the student journey at IIT actually begins this onwards.

I joined ThinkInnoventions, an electronics start-up at IITkgp by students there as a Think-Expert into R&D team to develop Digital pen technology. I find new set of IIT guys into innovation and start up venture. I was inspired, found  new opportunity, another perspective of IIT here.

Lessons I learned @IITkgp:

1. Stop complaining .. start accepting your surrounding and make the best with it..

2. Fight for what you want, your passion and dream..

3. Never give up in life

4.  How to make  friends and be with them.

5. As long as we are right, good; we win.. Be good, do good .. good things will follow..

6. Learned to say ‘NO’ when I want to say..You may think it’s not so great but it’s tough job to say ‘NO’ many a time and most important. I like to share a incident here happened when I was in third semester during placements in the end of  November.. Tech General championship very first event of the year. .Trying myself hard to get participation from MT hall being Technology General  Secretory in Hall council mean while so much busy for placement preparation.. and no one is ready to take up responsibility as captain for the event and participate.. Can’t help had to say ‘No participation’ from our side.. I never prefer backing off however tough the situation may go..!!! But , this time I had to do that..

7. Work for passion, it automatically takes you where you deserve to be.

8. The love that we give away is the love that we keep…:)

9. Forgive and forget , give and take policies : How true..!!!! How important it is to forget and forgive…!!

Many more personal development within myself as I could see in myself now.. Started enjoying , loving as never ever before..

I fall short of words to express my gratitude to the Institute.

More importantly I realized my potential to achieve my goals, make my dreams true.

Dreams and goals are very important to make life worth living..

Thank you Indian Institute of Technology , Kharagpur for all that you have given me..I am grateful through out my life for what you have made me today..

I wish this great institute be a great place to many more people like me.

IITKgp ka tempo high hai..!!!!!!!!!Yo IITKgp..!! IITKgp rocks..!!!

VLSI Technical Interview questions


1. What is Mux? explain..

I started explaining from a block diagram very patiently.

2. What is adder?  I stated from truth table and derived Sum , carry equations arrived at gate level realization.

3. Adder using Mux.I was bit confused .. I just wrote using 4:1 mux because I didn’t want to scramble with such simple question I just did as if I understood question as using 4:1 (I knew he is expecting using 2:1.. it was trick)

Then he asked me you do it using 2:1,but by then I had got some time fr myself..happens in interviews sometimes we get to struggle with simple questions.Then I did it using 2:1 Mux.

4. AND gate using Mux , OR gate using Mux.

5. What is latch and flip flop. Difference.

then he gave me clock and data timing diagram ,told me to draw output  for FF and latch. I assumed some delay for FF  and completed. I explained while drawing and kept interview interactive as much as possible.(it’s a trick any interviewers likes to hear more from you. .speak and speak it also builds confidence within you)..

6. draw counter : I selected to draw very simple  2-bit up counter and started drawing FF, I got doubt I asked him if Synch/Asynch counter. He told ‘Anything.. OK.. draw.. Synch counter. I tried using DFF not getting..(??) then immediately changed to TFF counter.. Then he asked me to draw using DFF. I said ‘Yes Sir I can'(speak positive though you don’t know immediately and take time to answer..)

Then I was trying with some mind calculation to get Q1Q0 as 00,01,10,11…I kept saying him whatever I was thinking in my mind.Then he interrupted and said me ‘Rekha, do you know a systematic approach for this ,if so try that.. ‘.. he was about to say States…But I got it by then and started explaining myself and completed counter design as a sequential machine.

7. Mod-2 counter the same way.. I did everything again sequential design..

8. What is set-up and hold time?What happens if not satisfied(Ans: Metastability word should come here)

9. Given a Flip Flop circuit how to determine maximum operable frequency..

I told (1/(Setup time+Flop delay)).. he expected it to be max(hold time, Flop delay). He asked me again and again what if delay is 0 and then immediately told my  previous answer is based on the assumption (hold time)< (Flop delay).

and we have to take max(hold time, Flop delay) in case of no assumption.

10. It’s a tricky and a new question to me: You have a digital system designed which has got set up time and hold time violations , you are allowed to fix only one problem(setup or hold) which one you choose and why?

I thought for sometime and drew some clock edges and marked set up and hold times.Tried to explain whatever I know.Interviewer was happy for the attempt and the explanation.

Updated Ans: generally setup time and hold time violations are very very serious concerns in the design.so if there are any setup/hold violations they are identified during the timing analysis (99.99999 % coverage is done for timing)… during the timing analysis if there is any setup violation, it can be avoided by adding clock buffers in the clock path or removing data buffers in the data path or some changes can be made to the design itself… similarly if there is a hold violation, clock buffers are removed or data buffers are added or design can be modified……
if by any chance once the chip is fabricated with:
1) setuptime violation: the way to function it properly is to reduce the frequency (basically by reducing the frequency of the clock u r increasing the time period and trying to avoid the setup violation).
2) hold violation: u cannot make any tweaks to function it properly, basically the chip goes in to trash…
so out of the two violations, hold violation is more dangerous.

Now my Tech questions over. he asked me two puzzles:

1. Balance puzzle

I just wrote down the puzzle on paper in detail with a figure of balance also..( to make him think you analyze things systematically and ant tech person will like that approach ). Here my interview skill won than my analysis/approach..So be tactful while answering questions both easy and tough..!!!!!!!Try to be more descriptive and interact no matter whether you land up with answer or not..But you find answers most of times when you solve problems interactively..

2. 125 small cubes given, make a big cube using  those and  all 6 faces of new cube panted red ,then how many faces of small cubes are painted??(This is new to me)

Then again I wrote down the problem.. started actually analyzing it.. thought of 5^3 =125 also.. wrote in a corner.. and thought again if I can say him immediately answer. No I ws not confident of my answer so just took more time..still thinking then he said do you know integration and imagine in 3D the cubes and try.. ” I said “Yes Sir I used to love integration in maths.. but don’t remember it exactly or a systematic way. ..”

He said “that’s fine Rekha we will wind up here I like to meet you in second round , you give me your answer then.. don’t ask friends.. think o your own..Nice to meet you .. pls come after lunch”..

Done with first round of Technical..Second round.

Twin days jubilation @ IITkgp(21st and 22nd of Aug.2011)


Our institute, IITkgp celebrated two occasions on two consecutive days, so I want to call them  as  ‘Twin days of  jubilation’.

Two occasions were ‘Diamond Jubilee of Institute‘ and ’57th Convocation’.

Diamond Jubilee is successful completion of 60 years(1951-2011) of the largest, glorious and most prestigious Institute of India. I feel so proud  be part of such an Institute and to be part of this memorable celebration of success.

Every years thousands of engineers,Research scholars,Entrepreneurs are precious resource that Institute contributes to the Nation.

On the day IITkgp ha put up 2011 largest wall calendar which consists of all current and 2011 convocation students on it arranged according to respective Birthdays. It was an appreciable, innovative, exiting idea and so great about the creater.It was an indispensable moment to search and locate our photos on the calendar..:):)

Celebration of the day started with Diamond jubilee Curtain raising in evening , then ETMS(Eastern Technology Music Society) and TDS(Technology Dance Society) production followed by Laser show by MIT .

It was awesome fun that full evening along with special dinner at night.Specialty about this Convocation special dinner is that all the hostels of Institute will prepare same menu and it’s time to show their mess food quality and different tastes.students cam have their food in any of Hall food stalls. Moreover it’s like Reunion for all senior batch students and all students of institute get together for dinner.

2011 largest wall calendar at IITkgp.

Diamond jubilee curtain Raising program

Reunion Dinner Hall counters

All students had lots of fun..:)I specially thank Institute and the designer for the B’day calendar.It was a biggest surprise to see our photos on the largest wall calendar and a pleasure to search our own and friends’ photos..:)

Next day (22th Aug.2011)it was all a greatest moment of  joy to all 2011 passed out IITkgp studentsi.e Convocation.Every lane has banner “Welcome Degree Recipients to 57th Convocation of the Institute”.I can’t just have no words to describe joy and happiness  on the day  for degree recipients.

Dr.Manmohan Singh,Prime Minister of India was Chief guest for Convocation day.I have shared some of pics captures around campus ,ready to welcome Prime Minister.Military force, heli-captors in campus.Meanwhile I could meet many of my seniors after a long time and had quality time with some of them.I thank them for their time with us..:)

infront of TOAT

Convocation was arranged in Tagore Open Air Theater(TOAT). There was live telecasting of the event in all hostels and auditoriums in campus(Nehru and Raman Auditoriums),only Degree recipients along with two other companions with them were allowed inside theater. Some of streets were blocked for security and discipline in campus in presence of PM at IITkgp.

For more photos check out this link.

Finally all  joy of celebration should come to an end. By evening everything in campus was back to normal.Again a day began back to as usual day to day IIT life.

Even after 60 years of it’s foundation, IIT kharagpur is th largest and glorious Institute of India. I feel so proud to part of the Institute specially to stay here during Diamond Jubilee of Institute.

Proud to say “I am an IITkgpian”

First day Gymnasium..!!!!!!.:):)


Yesterday I  joined Gymnasium for early morning first slot .Today morning 6am I was suppose to be in Gymkhana  for first class. As usual I woke and see my watch it’s 10 past 6..It’s fine first day I decided to go to class.

Sheetal, my friend in the hostel  had to  accompany me. I went to her room to see if she is ready, but she was still on her bed.!!!! I woke her up, asked her to get ready and returned to room.

By the time we both were ready and left for Gymkhana it was 6.30am.. Still fine we wanted to attend first day.Gym officer was lenient and allowed us in next slot..:)

Then begins first day full work out..!!!!

Began with walking on treadmill..then twisting, push-ups, skipping, weight lifting,pulling,stretching,pushing,bending… many more…!!!!!

While pulling weights in Long pulley exercise I felt so easy with it..But I was actually doing in wrong posture..he..he..:)

Then the trainer told me to do with proper posture with legs and back straight.

That time I remembered one quote which says something like this ‘ When your way is not tough then it’s that you are on wrong path’.!!!

Huff…..!!!!Sheetal and me were done with first day work outs..!!! Fully exhausted, body is paining and we are waiting for trainer to say us  to move out.We came out by 8 O’ clock..After this both of us were not in condition to ride our bicycles.. Came walking..!!!

We reached hostel with both the legs and back paining. Got fresh,had breakfast and again a short walk to department..:)

I have walked many times before to Dept. but today’s is different experience of doing that..:)

About VIPES specialisation at IITkgp


I am a 2010-12 batch master degree student of Electrical and Electronics Communication engineering department at IIT kharagpur. My area of  specialization in Masters  is Visual information Processing and Embedded systems which is in short VIPES.

After completing one year in academia of  VIPES at IIT kharagpur I would like to share some of the information about my specialization.I still remember my first Registration day in IITkgp and my first foot step to Kharagpur Junction Railway station.

VIPES is very good branch for those who are interested in these areas:  Image and Video processing, Biomedical Image processing, Computer networks, and Embedded systems.

I just brief out course details:

The first Professor you would meet is our Faculty adviser Prof.Santanu Chattopadhyay. He is very good and very helpful for the students.

First semester:

Theory: Two core subjects ,2 labs and 3 more elective subjects among the electives 1 is Humanity ans Social Science dept. subject.Core subjects are

1> Embedded systems Design..Reference book  is Embedded-System-Design-Marwedel

2> Image Processing .. Reference books a).Fundamentals o DIP Gonzalez & Woods.We followed video lectures available on NPTEL.

Data structures ,Architectural Design of ICs(ADIC) and Advanced Computer Architecture, Digital signal processing,Machine Intelligence  are the electives mostly chosen by VIPES students as they are suitable for VIPES specialzation.

Humanity and social Science subject are quite good like Logical Reasoning,Inter personal Communication,Business communication  and others.

My elective from HSS was Logical Reasoning and from EC were ADIC and Digital Signal processing.I enjoyed all the subjects especially Embedded systems , ADIC theory and Embedded systems  Laboratory.

Labs we had Embedded system design as I said above and Digital Image processing.

Embedded system design lab we studied ARM controllers ,ported RTOS on ARM7 LPC2129.

Digital Image processing is also very much interesting with Image rotation,enhancement in transformed and non-transformed  domain study.We did most of C programming for all these.

Duration of a semester will be for 4-5 months and it was all over by the time I gotta know what’s VIPES in IITkgp.Finally that was all fine and successfully done..:)

After a mini winter project for the month of December second semester started on Dec.28 and it’s one more memorable  registration as that was on my Birthday.

Telling about course content we had 2 core subjects , 1  laboratory and 4 more elective subjects.

Core subjects: 1) Pattern Recognition and

2) Computer Networks .

Both core subjects are very interesting subjects.There were not many electives to choose, finally opted Low Power Circuits and Systems(LPCS), Artificial Intelligence,Advanced Operating systems and  Design & Analysis of Algorithms.

Some of classmates selected Advanced Image Processing, Biomedical Image processing.

Laboratory:  Computer networks Lab where we implemented Data Link Layer and Network Layer protocols in C.

More about VIPES check out  VIPES Brochure.

Meanwhile our project allocations were done almost in the mid of second semester. Guides were allotted according to our  preferences given and ranks, but list was tentative. Later it can be changed but all within stipulated time. Many of us approached the Professors according to our interest in respective areas of interest. Check Faculty directory for these information.

Now I have successfully finished my first year and stated with M.tech Thesis work as well.Now I am working under the guidance of Prof.Indranil Sen Gupta(CSE dept.) and Prof.Santanu Chattopadhyay(Our Fac-Ad). My work is all about Computer Security i.e. Validate program execution during Run time for security of the system.It’s interesting and many more new things to be learned and be implemented.

Admissions are going on for different courses.So it’s the time to welcome juniors to IIT kharagpur

Welcome  Guys..:) All the best to your new life in IIT..:) Make it the most memorable and Successful..!!

Cheers..!!!