Hi Aspirant!

According to the eligibility criteria, any B.Sc. Degree with Honours and without Honours,  both are equally eligible for the exam. So, as you mentioned that you have BSc in mathematical science, yes you can apply for IIT JAM. This exam is conducted to get admission in IITs and IISc for MSc programs. Programs include MSc, M.Sc.-Ph.D. Dual Degree, Post-UG Degree and Joint M.Sc.-Ph.D degree at the IITs and Integrated PhD Degree programmes at the IISc Bangalore.

To know more, visit here:

IIT JAM Programmes 2022 – Courses, Paper Code, Seats (careers360.com)

Thankyou!