Hello Namrata,

I am sorry to say that your rank is too low to get the CS or electronics branch with 3163 rank it is hardly possible. 

To get CS or EE /EC up to final round you should have at least  2000 rank or less. But don't worry you have at least other branches such as civil, biotech or mechanical so if you want then you can look upto these branches.

hope for the best!