Hello, Pruthivi firstly i would like to congratulate you for securing such a good rank in JEE MAINS. You have a chance of admission in almost all NIT's. You can check out this link for OR(opening rank) and CR(closing rank) for all the NIT's for your prefered branches.

https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits

With this rank you can get a decent branch in a nit or iiit. However, getting top branches in top NITs like MNNIT, Allahabad, NIT Warangal, Surathkal and Trichy and in some top IIITs. Although you might get a decent branch in NIT patna, hamirpur and in IIIT jabalpur but getting CS here will be difficult. If you want to go for CS than you can try for lower NITs. You also have the option of upgrading your branch after completing one year on your course.

All the best.