Hey,

The certificates like your category certificate, domicile certificate as well as your income certificate are issued by the state authorities itself. Evey city in the state comprises of a Block office that is responsible for issuing these certificate to the students.

You need to visit the block office of your city and should apply for the certificate there. After submission of the form as well as after the completion of your verification you will get your certificates.

Hope that helps.

Thank you.