Colleges in Rourkela

For this you should search and see the placements of the college consistently and bonding with different companies.
Moreover, you should also, if possible, visit the college and ask the current studying students and take the feedback.

No. its very difficult to get it with this rank.Even with homestate quota its difficult to get ECE in 13k rank.

You might just land up in the integrated M.Sc in physics, chemistry and maths and yes, you might get mining, biotechnology and biomedical too.

NIT-Rkl is the 2nd best NIT right now.

Yes, as long as you have the passion for it! You'll have to learn chemistry at some point of time but at a very elementary level! With good Maths, Civil is a cake walk!
All the best!

In case of CSE, it doesn't matter you do it from Rourkela or MANIT. Still, go through placement statistics and also your comfortable location. For information about faculty and research project go through NIRF data.

No Mechanical branch in IIIT Allahabad and for ECE branch IIIT has a fairly good faculty and infrastructure. Certainly for those interested in core ECE projects IIIT Allahabad has great faculty and support system.

Hello Pratham,
Enter your rank in the link given below and get the list of best colleges:
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor
I hope this helps. All the best.