As long as the community you belong to is still listed under SC Category, the certificate remains valid. The income certificates do have a limited validity but not the Caste Certificates in most States. For example, AP is coming up with Caste certificates with life long validity and Gujarat has extended the SEBC certificates validity by another year. So please do help us with the State you belong to and we shall help you with relevant information.

hello Diksha

your caste certificate issued in 2012 which may be not acceptable in counseling so please issue new caste certificate . YOU can apply caste certificate from CSC of your locality.

You must apply caste certificate through tatkal sewa so it will issue in 5-6 days.

but it is depands on respective state policy but it is better for you issues your caste certificate it is better for your future.

You can predict your college using Colleges predictor tool.

https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

You can visit the link for more information.

https://medicine.careers360.com/articles/neet-reservation-criteria

You can visit the official link for more information.

https://edistrict.up.gov.in/edistrictup/

hope that's helpful

best of luck