Dear Tabaan, when you say you are studying Integrated B.Sc Biotechnology course, isnt it a 5 year B.Sc+M.Sc course? And once you are done with B.Sc, you want to study M.Sc in IISER? We are afraid it doesnt work that way. The Integrated course is for 5 years and you are awarded your degree and certificates of course completion post the course which is 5 years. But please check with your Institution if they offer degree certificates post the completion of B.Sc. If yes, you may as well give it a try.