Documents you will be needing during counselling are listed below : -
1) JEE Admit Card
2) Attested 10th and 12th passing certificate with marksheet
3) Counselling letter reaching at your postal address.
4) Passport size photographs.
5) Counselling fees of Rs 10,000(DD) that will be compensated with your academics fee if you take admission or else it will be paid back with 10% deduction.
Remaining details will come along with the counselling brochure you are abou to get.