I m a student of bsc zoology 4th sem.... m i eligible to do b.tech in biotech aftr my graduation??

i think you are not match for b.tech.becas the eligibility for this is +2.For IITs, It is mandatory to qualify in the Joint Entrance Examinations (J.E.E). but you can do mtech. completing your pg& pass the GATE EXAM is also necessary for do mtech