I applied for the SSC exam under the OBC category, but my OBC certificate is for a different time period than what they require. They’ve now placed me in the general category. Can I challenge this decision in the CAT and what’s the process?

You can challenge the decision of placing you in the general category through a Central Administrative Tribunal (CAT) application. You’ll need to file a petition within the stipulated time limit, providing evidence of your OBC status and explaining why your certificate is valid.