Lucknow/Ranchi/New Delhi, March 27 -- Manna Lal has walked 100km over the last 24 hours with almost no food or water. He has to cover 150km more to get home. Lal, 48, is one in a group of eight labourers walking across the length of eastern Uttar Pradesh to get to their ancestral village of Gatla Beli in Bahraich district - roughly 250km from Kanpur city, where they worked as masons....