NIT

You have very low chances of getting an NIT as per your marks. According to your marks, you should appear for advanced exam. Chances will increase if you clear the advanced exam.

Hello,
I hope you are doing well. State rank will be calculated by your state counselling authority of JEE Mains based on that you will be able to go for NIT. You will definitely get a seat in NIT Karnataka along with your favourite branch.
All The Best.

Top NITs rank-wise are mentioned below:
National Institute of Technology (NIT), Tiruchirappalli
Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat
Visvesvaraya National Institute of Technology (VNIT), Nagpur
National Institute of Technology (NIT), Rourkela
National Institute of Technology (NIT), Surathkal
Motilal Nehru National Institute of Technology (MNNIT), Allahabad
National Institute of Technology (NIT), Warangal
National Institute of Technology (NIT), Durgapur
National Institute of Technology (NIT), Calicut
Malviya National Institute of Technology (MNIT), Jaipur
Regards.

You may get that NIT after all its dependent on counceiling. It's my personally suggestion go for counceiling round. And if you want check possibilities that what would you get on behalf of this rank go to the Shiksha's own college predictor.

Hello Vignesh,
It is good that you are looking forward to study in top institutions of India, however your marks are not enough to get you admission in any of these colleges, so I will suggest you to take a gap and prepare well for the next year. All the best.

Hello Gagan,
As per your rank and category your chances are nil for getting any NIT's, so look forward for any decent private colleges, kindly check here:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
All the best.

Yes, you got fair chances for getting into top NITs. Apply wisely, choose your specialization wisely and participate in the counselling process. You will surely get the best.

Yes, you have chances to get into NITs and GFTIs, but you will never get your choice of specialization. You have to opt for odd specializations like paper engineering and textile engineering.

Depends on your choice. If you are passionate about coding, go for NIT, if you don't like coding, CSE is for you. In that case, go for IIT electric. Both are good, and you are doing from premier institutes. Good luck and hope it helps ( But what I feel with your marks if you get CSE, it can only be the newer ones. 157 is not enough to get CSE without home state).