The Full Form of BBSB is Bharat Bill Payment System.

Bharat Bill Payment System (BBPS) is an integrated bill payment system in India offering interoperable and accessible bill payment service to customers through a network of agents of registered member as Agent Institutions (AI), enabling multiple payment modes, and providing instant confirmation of payment.

National Payments Corporation of India (NPCI) functions as the authorised Bharat Bill Payment Central Unit (BBPCU), which will be responsible for setting business standards, rules and procedures for technical and business requirements for all the participants. NPCI, as the BBPCU, will also undertake clearing and settlement activities related to transactions routed through BBPS. Existing bill aggregators and banks are envisaged to work as Operating Units to provide an interoperable bill payment system irrespective of which unit has on-boarded a particular biller. Payments may be made through the BBPS using cash, transfer cheques, and electronic modes.