What are the best colleges to study nuclear biotechnology or microbiology in india for the masters course?

well i am pursuing zoology hons. with chemistry and physiology as my combination subjects.....after graduation what are the best colleges to pursue on with my masters(in microbiology or nuclear biotechnology) in india????.....if not this what are the other avenues should i be looking at after graduation that deals with biology and chemistry as mainstream subjects??????.....and what are the best places to study them in india?..please provide me with good info!!