For what purpose did RBI set up a working group led by Sunil Mehta, to accelerate and widen the reach of digital banking services?

A working group (WG) under the chairmanship of Sunil Mehta, Chief Executive, IBA and select banks recommended guidelines for setting up of Digital Banking Units (DBUs) by commercial banks.  A DBU is a specialised fixed point business unit / hub housing certain minimum digital infrastructure for delivering digital banking products & services as well as servicing existing financial products & services digitally, in both self-service and assisted mode, to enable customers to have cost effective/ convenient access and enhanced digital experience to/ of such products and services in an efficient, paperless, secured and connected environment with most services being available in self-service mode at any time, all year round.