Answer : 4. "भारतीय बैंक संघ"
Explanation :

On 20 November 2020, Union Bank of India's MD & CEO Rajkiran Rai was elected as the new Chairman of IBA. Dinesh Khara, Chairman of State Bank of India; Madhav Nair, Country Head & CEO of Mashreq Bank; and S. S. Mallikarjuna Rao, MD & CEO of Punjab National Bank, were elected as deputy chairmen.