Hi nilesh,

The syllabus of IIT Joint admission test(JAM) for Physics which I got from the official website consists of 7 topics. One of the topic is mathematical methods. JAM 2022 will be conducted by IIT Roorkee and it is said they have done some changes in the syllabus so check it out. Now the syllabus of 12th grade maths differs for each board. I am going to take reference from NCERT 12th maths textbook which is highly recommended for competitive exams and I would personally suggest it too. Now after comparing both syllabus of IIT Jam Physics and NCERT maths book, the topics which needs the most attention is Algebra i.e matrices and determinants, Calculus i.e integrals,derivatives and differential equations and Vectors excluding the 3 dimensional geometry. Starting from 12th board seems a good strategy and I hope your hard work pays off. I hope you got the answer you were looking for if not please l et me know.

All the very best.