Mehmood Khan gave up a high-flying corporate career in London to return to his roots in rural Mewat. The transition - from Unilever House in Blackfriars in the heart of London, to Nai Nangla, a village that doesn't even have a water connection - is not easy. But Khan, formerly the Global Leader of Innovation Process Development at Unilever, is doggedly pursuing his mission to lift his impoverished brethren so that they can have a decent life.