I wish that the unbanked make use of the occasion to adopt digital payments," Siddharamaiah, CM of Karnataka, said in a statement. Airtel Payments Bank, a subsidiary of the country's leading mobile phone operator Bharti Airtel, rolled out pilot services across 10,000 Airtel retail outlets in Rajasthan in November. It facilitates cashless purchases of goods and services through mobile phones, giving an impetus to the digital payments ecosystem amid the cash crunch effected by demonetisation. The payments bank offers basic banking services to customers by leveraging Airtel's retail network. It offers highest annual interest rate of 7.25 per cent and an insurance of Rs 1 lakh per account Customers opening a savings account with Airtel Payments Bank will also get one minute of Airtel mobile talk time for every Rupee deposited.