The fine was imposed after RBI scrutinised the bank's documents relating to opening of accounts without any specific or clear consent from the customers.
"The Reserve Bank of India (RBI) has imposed, on March 7, 2018, a monetary penalty of Rs 50 million on Airtel Payments Bank Limited (the bank) for contravening the Operating Guidelines for Payments Banks' and directions issued by RBI on Know Your Customer (KYC) norms," the central bank said in a statement.
Based on the complaints and adverse media reports alleging that the bank had opened customer accounts without a clear/specific consent of the customers, RBI conducted a supervisory visit to the bank from November 20-22, 2017.
According to reports, more than 23 lakh customers had reportedly received as many as Rs 47 crore in their Airtel bank accounts, which they did not know had been opened.
The supervisory visit report and other relevant documents, revealed contravention of Operating Guidelines for Payments Banks' and the directions issued by RBI on KYC norms, RBI said.
"After considering the bank's reply and oral submissions made in the personal hearing, RBI came to the conclusion that the aforesaid charges of non-compliance with RBI guidelines/directions were substantiated and warranted imposition of monetary penalty," RBI said.
It further said that the action was based on deficiencies in regulatory compliance and was not intended to pronounce upon the validity of any transaction or agreement entered into by the bank with its customers.
Airtel Payments Bank had commenced operations in January last year.