<Tr> <Td> 14 </Td> <Td> I.G. Patel </Td> <Td> 1 December 1977 </Td> <Td> 15 September 1982 </Td> <Td> 7003174900000000000 ♠ 4 years, 288 days </Td> </Tr> <Tr> <Td> 15 </Td> <Td> Manmohan Singh </Td> <Td> 16 September 1982 </Td> <Td> 14 January 1985 </Td> <Td> 7002851000000000000 ♠ 2 years, 120 days </Td> </Tr> <Tr> <Td> 16 </Td> <Td> Amitav Ghosh </Td> <Td> 15 January 1985 </Td> <Td> 4 February 1985 </Td> <Td> 7001200000000000000 ♠ 20 days </Td> </Tr> <Tr> <Td> 17 </Td> <Td> R.N. Malhotra, IAS </Td> <Td> 4 February 1985 </Td> <Td> 22 December 1990 </Td> <Td> 7003214700000000000 ♠ 5 years, 321 days </Td> </Tr>

Who had the shortest tenure as governor of reserve bank