Dear Rajeev, 

You have very high chances to get Electronics and Communication Engineering  in Chennai Main Campus. 

As per trends of the closing rank 

B.Tech Electronics and Communication Engineering

2016 27000 Max. Closing rank

2015 19000 Max. Closing rank

There are very high chances for you to get Electronics and Communication Engineering.

And as you know seats are increasing steadily, your chance is also increasing. 

You can also check it on Careers 360 College Predictor 

Https://engineering.careers360.com/srmeee-college-predictor

HOPE IT HELPS.