ANSWER: NPCI
Explanation:
- 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, enabling multiple payment modes, and providing instant confirmation of payment.
- BBPS would provide bill payments through commerce portals and online payment aggregators provided they choose to be a part of the Bharat Bill Payment System and offer bill collection and payment services to their clients.
- National Payment Corporation of India (NPCI) would act as the central nodal authority for Bharat Bill Payment System overlooking all complaints as well as audit of payment procedures.