Hello Pallavi,

During the counselling process, the allotment is based on the availability of seats, your rank in the merit list, and your preference. Once you have got your name in the merit list released by IISER, you need to fill the IISER application form released by the conducting body. Then you need to fill your choices online (fill it very carefully, because this will determine your chances of getting your preferred choice). Then you need to report to alloted centre for document verification. Finally institute will allot you seat on the basis of availability of seats, your rank in the merit list, and your preference. Then you need to pay the minimal amount to lock your choices.

This is what required in counselling and nothing more than this will be asked to do.

For any other query, comment below. Have a great day!!