Explanation
A: Governor, Reserve Bank of India
The signature on a hundred Rupee note is that of the Governor of the Reserve Bank of India. The Reserve Bank of India is the central banking institution of India, which is responsible for regulating the country's monetary policy, issuing currency, and managing the foreign exchange reserves. The Governor of the Reserve Bank of India is the chief executive of the bank and is responsible for managing its day-to-day operations. The signature of the Governor on the currency notes signifies the authenticity of the note and indicates that it has been issued by the Reserve Bank of India.
