Chennai

Hello, Greetings from Shiksha! Check out the college predictor of Shiksha: https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor You will find your college through this. Good luck!

You have good chances of getting the computer science engineering branch at the main campus of SRM University, but it depends on the availability of seats also.

Hello Vibhor,
As per your rank of 30397 in SRM JEE, your chances are very low or nil to get electronics and communication engineering at the main campus of SRM University.
You need to opt for the other campuses only.

Hello Mahesh,
There are no particular cut-off marks or ranks. If your rank is below 30000 then you can get admission into SRM University at any of its other campuses which means you need to score atleast 170/315.

Hello Preetham,
The best campus of SRM University is obviously the Kattangulathur campus (main campus). Ramapuram campus is also good but the infrastructure and the facilities will be better at SRM Kattangulathur only.

Hello Ashwin !
As per your rank, your chances of getting computer science engineering at the main campus is really low. So you need to try for the other campuses. May be you can get some courses like civil, chemical, etc. at the main campus.

Yes, to get admission in Chennai campus, you need to attend the counselling at the Chennai campus only. For all the campuses, you need to attend the counselling at Chennai campus only.
For NCR and Haryana campuses, you may go to the respective colleges.

NITs will not offer Diploma, they only offer Bachelor's degree and Master's degree. Try for some Hyderabad Universities or college like CBIT, VASAVI etc.