Hi Candidate,

The Caste Certificate is the document that shows the proof that you belong to a specific kind of Category either it's Other Backward Classes (OBC), Schedule Tribes (ST), Economically Weaker Sections (EWS), Schedule Caste (SC) etc.

The caste validity Certificate means to renew and update the caste certificate from the Magistrate's Office to confirm your Category Certification.

Hope that this answer helps you to.