35 Questions,80 mins time
Qns were mostly from Quant...including some logical reasoning qns..I answered 34 qns...I was sure all were correct.

60% throughout and maximum 2 yrs gap.

Since it was an on-campus recruitment of TCS,there was only 1 round of interview which included both HR and Technical round.
First of all,Sir asked me about my project.
then,since my background is ECE,he started asking qns from ECE such as:-
1.What is A.M.,F.M.?
2.Which of the above is better and why?
3.Elaborate op-amp.
4.Draw full-adder ckt..
5.Master-Slave flip Flop
6.J-K flip flop
7. can capacitor be charged using AC?
And some qns from Analog Electronics.
since I was good at C,a lot of qns were asked from C as well.
Remember one thing.If u are going for the interview of TCS,u must have good concept over C.It will help u a lot in the interview.

Do's :- have good grasp over C and a good communication Skill.
Dont's:- Dont get nervous during the interview.
You should make sure that whether u have deep knowledge of ur own subjects or not,u must have good knowledge over C.Also Remember that whatever subjects u have mentioned in ur CV....prepare them well coz most qns will be from there itself!

A total of around 425 students appeared for TCS on-campus recruitment drive in our college on 3rd n 4th of Jan, 2011.Out of them,179 students cleared the apti round.Top 5 from ECE,CSE,IT and AEIE were given direct entry to the interview.So a total of 202 students(including 3 MCA students) were eligible for the PI round.Finally,134 students were selected from our college.I was one of them.
Things that worked in my favour was that I had good communication skills,I was very good at C.I answered qns from those parts which I mentioned in my CV.My CGPA was around 8. My 10th - 12th marks were impressive.
Also,i was given 2nd rank in the Apti Round.