You can pursue Nanotechnology in Indian Institute of Technology Bombay but it offers a Phd degree . And if you are patient enough, then you can also get satisfied with an M.Tech degree in Nanotechnology in Indian Institute of Technology Roorkee , Netaji Subhash Institute of Technology or Indian Institute of Science Bangalore. These are all good colleges in which you can pursue Nanotechnology after doing B.Tech in Computer Science or Electronics Engineering or Material Science.

But if you want a bachelor's degree , then you can go for SRM or Amity University.