Dear Prashant,

Indian Institutes of Science Education and Research (IISER) will conduct admisison through 3 channels  KVPY, JEE, and SCB.

Those Candidates which opting for SCB channel, aptitude test wil consist of four subjects of equal weightage: Physics, Chemistry, Mathematics, and Biology.

15 questions will be asked from each subject. There will be total of 60 questions. Duration of test will be 3 hours.

Hope this is helpful for you.

Good Luck!