Hii..

Congratulation on your score..

Yes your OBC category rank is too good..You can get a Good NIT & Even Good field also..But there is some hurdles may be come because Your Rank not That much that you get Good NIT & Good Field(CSE,Mech) Both...Either you have to consider Good NIT or Good Field..

So Here i am giving you a link of all NIT cutoffs For all thr field that You mentioned..Please go through the link & Choose your option..

CSE

https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-b-tech-computer-science-and-engineering/amp

ECE

https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-btech-electronics-communication-engineering/amp

EEE

https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-btech-electrical-and-electronics-engineering/amp

Good luck.