I have an old caste certificate with me. Do I need to apply for it again ?
Caste certificate has lifetime validity. So you don't need to apply for it again. The caste certificates once issued would remain valid till the government revoke them. However, group classification certificates for the OBCs for employment purposes would be given annually, if the recruiting authority insists.
Caste Certificates - Recently Asked Questions
My caste certificate from Nada Kacheri was made on May 2014. It doesn't have a hologram sticker (but had a printed hologram). Is the certificate original? Can it be verified for government jobs? Also, I can't reprint the certificate (from their website) as I have lost the number which was used to make the certificate.