I am from ECE background & want to pursue M.Tech in CSE from IIT-B, IISc or BITS. Is it possible and what are the criteria?

Yes. It is possible if you have a good score in the GATE exam in that branch. You have to give the GATE exam from the CSE branch.

Yes, it is possible, but you have to clear the exam of GATE. And, now you can get calls from these Universities and also from IIM, if you have a good score in your GATE exam.

Yes it is possible and you need to appear for GATE for the same, check link below for details: http://www1.iitb.ac.in/academic/mtech.jsp http://www.iisc.ac.in/admissions/m-tech-m-des/ http://bitsadmission.com/hdmain.aspx