Pitcher pure
Home remedy
Extremely light!
Turmeric harvester
Water from sun
Back to nature
Rural power
Water monitoring kit
Rural energy
Power on wheels
Finally, some cheer
Spinning with ease
Rediscovering solar energy
Ready for Y2K
Made to order
Technologies developed keeping rural India in mind
Solar cooler
Chaste catalysis
A water-purifying technique that uses metallic catalysts