<Tr> <Th> </Th> <Td> 13 April 1957 </Td> <Td> 1 March 1962 </Td> <Td> 2nd (1,783 days) </Td> <Td> 1957 Madras Legislative Assembly Election </Td> </Tr> <Tr> <Th> </Th> <Td> 15 March 1962 </Td> <Td> 2 October 1963 </Td> <Td> 3rd (566 days) </Td> <Td> 1962 Madras Legislative Assembly Election </Td> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> M. Bakthavatsalam </Td> <Td> </Td> <Td> 2 October 1963 </Td> <Td> 6 March 1967 </Td> <Td> 1st (1,251 days) </Td> </Tr> <Tr> <Th> </Th> <Td> 5 </Td> <Td> C.N. Annadurai </Td> <Td> </Td> <Td> 6 March 1967 </Td> <Td> 14 January 1969 </Td> <Td> 1st (680 days) </Td> <Td> DMK </Td> <Td> 1967 Madras Legislative Assembly election </Td> </Tr>

Who was longest time chief minister in india