Hi Shweta Patil.

In general cases, whatever documents that are requested by the authority is to be presented while admission. So, if it is given as caste certificate, it will be enough. Or, if it require validity, and you have only applied for it, then you may ask inform them about it and they may give you some excuses. So, what to do is contact any helpline numbers and enquire about this. You can get the exact information from them.

Thanks.