Hello Parth!

While feeding ur choices they will just ask u to fill up the option of having any kind of criteria or reservation if u r having.There is no need to submit the certificate at that time but there will be one option for filling up the details of that certificate so u must have one.....whether it may be the previous one or the latest one.

But at the time of admission u must be present with the caste certificate and also with the NCL certificate to get the reservation benefit. At the centre chosen u must have the certificate  filling the latest criteria....

For any other queries please ask

Good luck and have a great future ahead.