<Tr> <Td> 6 </Td> <Td> </Td> <Td> Sonia Gandhi </Td> <Td> (1946 - 12 - 09) 9 December 1946 </Td> <Td> 1968 </Td> <Td> Rajiv Gandhi </Td> <Td> 31 October 1984 </Td> <Td> 2 December 1989 </Td> <Td> </Td> </Tr> <Tr> <Td> 7 </Td> <Td> </Td> <Td> Sita Kumari Singh </Td> <Td> </Td> <Td> </Td> <Td> V.P. Singh </Td> <Td> 2 December 1989 </Td> <Td> 10 November 1990 </Td> <Td> </Td> </Tr> <Tr> <Td> 8 </Td> <Td> </Td> <Td> Duja Devi </Td> <Td> </Td> <Td> </Td> <Td> Chandra Shekhar </Td> <Td> 10 November 1990 </Td> <Td> 21 June 1991 </Td> <Td> </Td> </Tr> <Tr> <Td> 9 </Td> <Td> </Td> <Td> Satyamma Rao </Td> <Td> </Td> <Td> </Td> <Td> P.V. Narasimha Rao </Td> <Td> 21 June 1991 </Td> <Td> 16 May 1996 </Td> <Td> 1970 </Td> </Tr>

Among these whose husband has never been the prime minister of india