Visit the nearest BSNL Customer Service Center, BSNL office, or authorized retailer
Carry a valid government-issued ID proof
Carry a passport-size photograph
Fill out the SIM purchase and KYC form
Choose prepaid or postpaid as per your need
Submit the required documents for verification
Complete biometric or in-person KYC if asked
Pay the SIM activation or plan charges, if applicable
Collect the new BSNL SIM card
Insert the SIM into your phone
Wait for activation after verification is completed
Follow any SMS or call verification steps if required