Hey,
Here you can find the colleges offering Electronics & Comm. in Chennai:
https://www.shiksha.com/b-tech/colleges/b-tech-in-electronics-communication-engineering-colleges-chennai

colleges offering CSE in Chennai:
https://www.shiksha.com/b-tech/ranking/top-computer-science-engineering-colleges-in-chennai/46-2-0-64-0