You need to opt for either PCB(Physics Chemistry Biology) Stream or PCMB(Physics Chemistry Maths Biology)(Recommended)in the 11th Standard and thereafter you can either apply for a B.Tech Programme in Biotechnology in a Private University Like Amity Institute Of Biotechnology, Amity University, Symbiosis University, Pune or Prepare for the premier B.Tech Programme in Biotechnology Offered by IIT-Kharagpur(Has 14 seats) or if you want to go abroad then you can try for MIT(Massachusetts Institute of Technology), which is the Premier institute of the States.

u take science and mathematics group in +1 . After +2 only u would have to search for the institutions which are best for learning GE.