Hi Sandeep,
I can definitely guide you here in this matter. I myself am a Computer Science student and this is a very common doubt in students. I would recommend you to make a good grip over algorithms and Data Structures. Make these two areas as good as possible. Rest will be a learning experience.
Good luck !!
Candidates can check B.Tech Cut off for Top IITs & NITs here.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile