On an NDTV exclusive Indian Express editor Shekhar Gupta asks British prime minister David Cameron: ' Will you give Manmohan Singh some lessons in running a coalition? Cameron: ' He's more senior and experienced than I am..he's also got more parties in his coalition'. Gupta persists: 'He also has thicker skin than yours..' Cameron: (looking embarassed) " Hmmm.. I don't know...."