Bihar runs its services through the RTPS (Right to Public Services) portal and ServicePlus. You can apply for income, caste, and residential certificates from your phone or computer. RTPS counters and Vasudha Kendras are set up at the block and panchayat levels for people who need in-person help. Keep your Aadhaar, PAN, and voter ID scanned on your device before you start. The RTPS portal uses Aadhaar-based login, so double-check that your phone number is linked correctly.