Dear Krishna,

I think  the best option wud be the chemical at IIT roorkee .. IIT hydearbad is also not bad option .. but consider it only.. if you are very much interested in the branch coz in terms of infrastructure, faculties and studies IIT roorkee is far better ..

Please feel free to post as many doubts on our discussion forum as you can.
we will get you the answer and detailed  solution very  quickly.

All the best.

Regards

Vijay Luxmi