how can i get my obc certificate from my home state from where our family had migrated to different state?

sir/madam I applied for obc certifacte from the current state 'X' where my family has been settled for 50 years.But the authorities declined my request as they said my cast is not in the list of obc in state X and now I am applying for the same in my ancestral state 'Y'.I 've two queries viz. 1) I am using my aadhar card ,ration card issued in state X for getting my obc certificate from state Y(my ancestral village where my grandfather's name is mentioned in tehsil records).Will there be any