Dear Shikha,

As per the eligibility criteria it is compulsory to have mathematics in your class 12th and Chemistry for three years/ six semesters in your graduation level for the institutes IITB, IITD, IITG, IITGN,IITH, IITI,IITK, IITM,IITP, IITR,IITRPR.

To know in detail you can also refer below link

https://university.careers360.com/articles/jam-eligibility-criteria

Good Luck!!