should I go for core branches in good nits or technical i.e. CS/IT in lower nits or MSRIT IT/ECE ????? (I prefer technical branches)

Hello,

Yes go for technical branches like CSE, if you are passionate about technology.  CSE has always been strong, which obviously demonstrates the great job opportunities provided by this course. I would definitely suggest you to choose CSE in NITs. Jobs wise CSE is very good for you as it has abundance of jobs. If you are not interested in ECE, then I request you to please don't choose ECE, almost 80% students who took ECE don't stay in their core sector, they either move to Tech core sectors or going with MBA, this can be of any reasons like less opportunities in that sector  or something else. Most of  the students after completing ece, they join in Software sectors as software developer/ Application developer or etc. In a matter of fact, after ece one will have a great scope by qualifying gate for the entry to PSUs. But CSE had not much opportunities when compared to ECE.  You can also  observe that cutoff rank for cse will be comparatively less than ECE. So the student who had less rank will get seat in CSE.  There are abundant of Job Openings for B. Tech in CSE. Some of best on going domains in CSE are

1. AI , Machine learning

2.  Full stack Web Developer

3. Cyber Security /Ethical Hacking /Penetration Testing

4. Block chain

5. Software Development Engineer (SDE)