Hello,

Indian Institute of Technology does not offer B.Sc Biotechology course. They offer BS Mathematics, BS Chemistry, BS Economics, BS Physics, BS Earth Science, BS Biological Sciences and BS Mathematics and Scientific Computing. IITs do offer B.Tech Bio technology and to get admission in that course you need to appear for JEE Main and JEE Advanced and qualify in it. Candidates who qualify in JEE Main are eligible to appear for JEE Advanced. To check the courses that are offered in IITs you can click on the link below

https://engineering.careers360.com/colleges/list-of-top-iit-colleges-in-india