Hi there!

Since you specifically mentioned Chemical Engineering, it all boils down to the college. NIT Warangal is much better than NIT Karnataka in terms of Faculty, Placements,etc. NIT Warangal, NIT Trichy and NIT Surathkal are always among the top 3 NITs in India.

I do not have any idea whether you can change your branch at NIT Karnataka. At NITW, Based on your 1st year's CGPA, you can slide into the branch of your choice. Let me tell you, its neither easy nor tough !

The branch slide results have been out a week ago and many chem and biotech students have successfully made it to ece, cse, mech, etc.

The thing with faculties is that, students will never be satisfied. They will always find faults even with good faculties. I prefer not to speak on that.

The choice is yours ! Both are good,while NITW has an edge.

Good luck !