<P> The ₹ 100 banknote of the Mahatma Gandhi Series is 157 × 73 mm Blue - green coloured , with the obverse side featuring a portrait of Mahatma Gandhi with a signature of the governor of Reserve Bank of India . It has the Braille feature to assist the visually challenged in identifying the currency . The reverse side features a view from Goecha La . </P>
who 's signature is found on the 100 currency note
the governor of Reserve Bank of India