In a rickety raft made of banana plant trunk, 16-year-old Yashmina Khatun and her siblings rowed for 10 miles to fetch drinking water to their hut. Their village Balimukh in Assam's Morigaon district, about 60 km away from Guwahati, is submerged in flood waters from an overflowing Brahmaputra and Kolong river.