All-women bank to take wings across states.
The 57-year-old Bhattacharya, front-runner for the post on account of years of service left, was managing director and chief financial officer of the bank prior to her elevation.
It will be headed by Secretary, Department of Financial Services.
21 banks have launched United Payments Interface application.
Ananthasubramanian, 55, started her career in 1982 at Bank of Baroda as a specialist officer in the planning stream.
Experts hail 2014 as the worst year for banks.
The Kolkata-based firm already has a presence in 22 states with over 2,000 branches and 5.9 million borrowers.
Union Minister for Women and Child Development Maneka Gandhi says her ministry is working on four core areas of "safety, education, employment and confidence building," which are critical for the 58 crore women population in India which includes over 41 crore in rural areas. She also lays out the detailed roadmap for her ministry including setting up of one stop rape crises centres, hostels for working women among others.