Computer Science and Engineering

No, actually it is the reverse of this. ECE students can give interviews with CSE students.

You may refer to the following link for a list of top engineering colleges: https://www.shiksha.com/b-tech/ranking/top-engineering-colleges-in-west-bengal/44-2-127-0-0. You may change the filter to get a branch wise ranking of colleges.

I, fortunately, you can enter IITs or NITs unless you crack JEE. For cracking JEE you require expertise in all three subjects i.e. Physics, Chemistry and Maths. If you can unable to get admission in these institutions now, you may try again by appearing for JAM examination conducted by IITs to seek

Following are the best options for you:
BM Group of Colleges, Indore
Prestige Institute of Management and Research (PG)
Institute of Company Secretaries of India

Dhirubhai Ambani Institute of Information and Communication Technology, BITS-Pilani, BIT-Mesra, LNMIIT-Jaipur, VIT-Vellore are top the non-government CSE colleges.