Hello,

The eligibility criteria for IIT JAM is that a candidate must have passed bachelor's with 55% marks or 5.5 CGPA on a 10 point scale. This is for candidates belonging to general category. For candidates belonging to SC/ST category it is 50% aggregate or 5.0 CGPA on a 10 point scale. So the marks scored in B.Sc is considered in your case. There is no minimum passing percentage required to score in HSC. But for each M.Sc, M.Sc-PhD program you must have studied required essential subject in 10+2 level. You can check the eligibility criteria by clicking the link below

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