Hello swetha sree,

It depends on the institution you have joined.

They will ask you around 20k-330k around you to conform your seat they have allotted.

In some institution there is no need to pay fee just need to submit letter of allotment. You need to tell them you have going 2nd round of counselling  so that they can put your seat in optional.

you can predict your college with this link which I have mentioned in below and their fee structure:

I hope it helps you.