K. G. Ambegaonkar was the fifth Governor of the Reserve Bank of India from 14 January 1957 to 28 February 1957. His was the third shortest tenure (45 days) after B. N. Adarkar (42) and Amitav Ghosh (20).[1] Compared to the latter two Governors Ambegaonkar's signature as RBI Governor does not appear on any Indian Rupee note,[1] but his signature as Finance Secretary appeared on the second, third, and fourth Rupee one notes issued after independence.[2]