Hello Ranga Swaroop!

The best branch in any NIT is that in which you are highly interested. If you are much interested in any branch and you perform well in it then surely you will get better opportunities.

Still there are some trending branches which are highly aspired by students-

COMPUTER SCIENCE AND ENGINEERING

ELECTRONICS AND COMMUNICATION ENGINEERING

INFORMATION TECHNOLOGY

MECHANICAL ENGINEERING

These branches have good scope in the future.

Hope that helps!