Hello Yogendra,
You have a pretty good rank in JEE - Advanced and you might get any IIT you desire. IIT Bombay and IIT Delhi are the best and top ranking IITs but getting Computer Science Engineering branch is very difficult because the cutoff is pretty high. So now you can either chose to get into the top IITs but you might have to compromise CSE branch or if you are totally into CSE branch you can choose a bit lower ranked IIT.
Detailed cutoff of IITs which can help you in deciding - https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iits
All The Best.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile