Dear Rishi
You need to pay 500/- to 2500/- it's depends on the caste etc..,  please go through the below link for the information you're looking for
JEE
All the best.
If you have any doubts,  comment here.

Hello rishi,
Could you please elaborate for which exam you are talking about . for mains you have to pay 1000 rupees for the general and the OBC category
Rest of the details can be found out at the JEE mains.nic.in. there please download the information brochure of 2018 exam and get the required details.

can u please tell which form if it is mains and u are either gen /obc male u need to pay 1000 if u belong to the rest 500