<Tr> <Td> Gurmeet Singh </Td> <Td> 1: 23: 34 </Td> <Td> 33 </Td> </Tr> <Tr> <Td> Irfan Kolothum Thodi </Td> <Td> 1: 20: 21 NR </Td> <Td> 10 </Td> </Tr> <Tr> <Td> Ram Singh Yadav </Td> <Td> Marathon </Td> <Td> 2: 30: 06 </Td> <Td> 78 </Td> </Tr> <Dl> <Dt> Field events </Dt> </Dl>

Who won silver medal in london olympics 2012