hey tanvipandey

bsc biology hons is a 3 year program .first you should studied from the pcb stream .it is compulsory. many colleges conducts entrance exams but most of the admissions are taken on merit based . first chosse the colllege you are interested in then fill there application form .and also dont forget to read carefully there eligibility criteria. however if you want to know something specific then comment below 

best wishes