Hi Kavya,

If you forget to report, I think you should  go to the reporting center

as soon as possible , may be there is a possibility that the seat alloted may not be rejected .

Or  there is also possibility that any another candidate who have to report and the candidate also fail to report on the given time.

Then they will provide give  you there seat.

So ,I will recommend that visit there once.

Wishing you luck :)