Underneath the blue skies, lies a green valley…………..only, it was a green carpet formed of siltation on a lake. on these carpets, people constructed houses. it is said that houses would move with the direction of the winds and movement of the water. you may sleep in these houses in one part of this freshwater lake, and possibly wake up in another part of the lake. this is the Loktak Lake in Manipur, India. the green masses are locally called phumdi.