He has been with Commercial Bank for 34 years.
In July 2003, he was appointed country manager Bangladesh, after de led the acquisition of a Credit Agricole Indosuez unit there.
Renganathan is a Fellow of the Chartered Institute of Management Accountants, UK (FCMA), Fellow of the IFS School of Finance, UK (Fifs) and a Fellow of the Institute of Bankers Sri Lanka (FIB).
He is also an associate member of Financial Services Institute of Australasia.
He has been a Member of the General Council of the Institute of Bankers of Bangladesh and founder President of the Sri Lanka Bangladesh Chamber of Commerce and Industry.