Hi there,
27634 is a very decent rank in SRMJEE and you still have a lot of options available to you.
Considering your question, I would like to tell you CSE cutoff for different campuses for the year 2018:-
1) SRM Chennai:- 10,000
2) SRM Ramapuram:- 65,000
3) SRM Vadapalani:-68,000
4) SRM Ghaziabad:- 54,000
5) SRM Sonipat:-68,000

So, as you can see there is no probability for you to get CSE at the Chennai campus, but you sure shot have a seat at Ramapuram, Vadapalani, Ghaziabad and Sonipat campuses

Hope it would help.
Thank You.

Hii Akarsh,

If you want to get admssion in main campus in CSe ,then you will have to score rank heigher than 10000.

for more information,please go through the link-

https://engineering.careers360.com/articles/srmjeee-cutoff

Thank you