Born into a farmer family from north Gujarat, Karsanbhai finished his B.Sc. in Chemistry at age 21 and worked as a lab technician, first in the New Cotton Mills, Ahmedabad, of the Lalbhai group and then at the Geology and Mining Department of the state Government. In 1969, Karsanbhai started selling detergent powder, manufactured and packaged in his backyard. This was an after-office Business - the one-man company would bicycle through the neighbourhoods selling handmade detergent packets door to door. At a price of Rs. 3 per kg, (one third the price of leading detergents), it was an instant success. Karsanbhai branded his detergent soap, Nirma, after the name of his daughter. After three years, Karsanbhai felt confident enough to quit his job. Later he said, "The lack of any such precedent in my family made the venture fought with fear of failure. But farmers from North Gujarat are known for their spirit of enterprise." Karsanbhai set up shop at small workshop in an Ahmedabad suburb. The Nirma brand quickly established itself in Gujarat and Maharashtra.