Indian Institute of Technology Banaras Hindu University Varanasi
You will have to apply for the same separately as the application forms are available from 13th April till May 1, 2017. To know about the same in detail, you can go through below article - IIT BHU Hope this helps!!!
As per my view, better to do CH as the placement chances are wider in comparison to other branch you have mentioned above. But you should consider your interest and capability also before choosing the same. Good Luck!!!
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