Hey,

Here is the list of top nits for civil engineering based on the rankings- 

1. Tiruchirapalli

2. Warangal

3. Surathkal

4. MNIT,Alhabad

5. Rourkela

6. Jaipur

7. Calicut

8. Nagpur

9. Durgapur

10. Silchar

See while choosing NIT’s / IIT’s for any course remember some points in mind :-

How old is the college and do they have a good campus culture there so that you get maximum exposure for your upcoming life. Check whether the branch is newly added there or it has been there from a long time.Go through the profiles of professors of civil of different colleges and compare for yourself. Also do look at the placement stats although those stats are just for on campus placements but it will help you when comparing between different colleges.Is language gonna be the problem for you in the place where college is located so yes location is a big factor too.

Hope this helps.