Hi

You have to make two wise decisions.

Firstly, which college you want to join NIT Calicut or NIT Rourkela. NIT Rourkela stands a little better than NIT Calicut based on the NIRF rankings by MHRD of India, and based on multiple factors including academics, research, campus, placements, etc. Now you have to decide where you want to join.

Secondly, Civil or Chemical, solely you have to decide which among these two you want to study. Whichever you like, go ahead with that. If you don't have any inclination towards any among these two, then i suggest you to choose NIT Rourkela Chemical Engineering. You can choose the other two, depends completely on your interest.

Best of Luck. 

Hope this helps.

Cheers!