Dear Devi Anusha, you have less chances of getting CSE branch in SASTRA Thanjavur by previous years cutoffs but give a try you may get. Cutoffs vary from year to year. You may get CSE in top private colleges. 

https://engineering.careers360.com/articles/jee-main-cutoff/amp

https://engineering.careers360.com/jee-main-college-predictor

https://engineering.careers360.com/colleges/ranking/top-engineering-colleges-in-India-accepting-jee-main-score

Above links may help you more. 

All the best..

Hello Devi,

JEE Mains is an annual exam that is conducted by the National Testing Agency and the CBSE for admissions to undergraduate engineering courses in NITs, IIITs, GFTIs and other institutes. It also serves as the first stage for admission to IITs through JEE Advanced.

EWS is a new category that has been created by the MHRD for economically weaker sections. 10% seats will be reserved for those candidates whose annual family income is less than INR 8 lakh per annum.

As for your question, considering your peercentile, you won't be able to get CSE in SASTRA but should be able to get other less preferred branches.

Follow the below link for more information about JEE Mains

Https://engineering.careers360.com/articles/jee-main

To use our rank predictor, follow the below link:

Https://engineering.careers360.com/jee-main-rank-predictor

Follow the below link for JEE Mains cutoffs of various NITs and IIITs:

Https://engineering.careers360.com/articles/jee-main-cutoff