Wishing you all a very happy 'Divali'.
A simple technology assures continuous moisture supply for agriculture in water-scarce arid and rain fed areas.
K.S. Gopal's presentation Youtube: http://www.youtube.com/watch?v=ip7j3k3CEZU
Also attached is a doc on re charging of 'Bore Wells', solving the ground water problem.
Warm regards
Subhash
Subhash Mehta