Dear,

When you are allotted a college in seat allotment stages i.e round 1 or 2, then it is important for you to pay the fee and report to your nearest reporting center with documents-

1. Class 10th & 12th Passing Certificate and Mark Sheet.
2. Migration Certificate.
3. Character Certificate.
4. Domicile Certificate (if applicable)
5. Category Certificate (if applicable)
6. You exam admit card with score card.

But if you can mention which exam counselling process you are talking about, I can help you in a better manner.

Hope this helps!