PAN India Bharat Sanchar Nigam Limited has initiated BSNL Recharge Helpline which was launched for prepaid mobile customers with support from M/s On Mobile, and this service will provide the customer with the following two options With this above two options, any prepaid customer can register recharge request from their own BSNL mobile number available
source https://99-networks.com/bsnl-recharge-helpline-home-self-friends/