Mansukhbhai R. Prajapati grew up more interested in sports and fun than in learning, but after working in the clay industry for some time as a potter he started his own company and first revolutionized the way clay roof tiles were made.
"During his childhood, he saw earthen pans/hot plates being manufactured manually on the potters wheel. Using this, one person can only make about 100 units per day. He had seen roof tiles being manufactured in large quantity on hand press, which made him think why cannot earthen pans be made the same way? In 1988, he left his job and took a loan from a money lender to start his own earthen plate manufacturing factory. He purchased a small piece of land for the factory, dyes and presses, soil mixing machine, electric potters wheel and other scrap objects. Then he modified the roof tile making hand press and developed a hand press machine having capacity to produce 700 earthen pans per day." [Source]
While very successful with this idea, his ingenuity led him to develop a line of products that is even more revolutionary than his industrial tile maker. Mitti Cool, as his company is called, produces an entire line of kitchen products made from clay.
"He has developed an entire range of earthen products for daily use in the kitchen. These products include water filters, refrigerators, hot plates, a cooker and other such items of daily use." [Source]
The refrigerator he designed uses the science of water evaporation to keep food cold in a small earthen fridge that uses no electricity and is already being sold in several countries.
His idea is taking off globally, and Mitti Cool is receiving much international attention, so much so, that Mansukhbhai has even met with important public figures and he has been featured in televised talks to explain his green products that are changing the lives of many poor people.