<Tr> <Th> Parents </Th> <Td> Jawaharlal Nehru (Father) Kamala Nehru (Mother) </Td> </Tr> <Tr> <Th> Alma mater </Th> <Td> Visva - Bharati University Somerville College, Oxford </Td> </Tr> <Tr> <Th> Occupation </Th> <Td> Politician </Td> </Tr> <Tr> <Th> Awards </Th> <Td> Bharat Ratna (1971) </Td> </Tr>

Which of these surname is common of three prime ministers of india