In 1969 Karsanbhai Patel began to sell a yellow detergent powder in Ahmedabad. He called it Nirma and sold it door to door from his bicycle. It cost 3.50 rupees per kilogram. Wikipedia gives the price of Hindustan Unilever’s Surf at the time as 13 rupees. The Better India gives 10 to 15 rupees.
“Within a decade, Nirma was the largest-selling detergent in India,” Business Today wrote. Its jingle, Sabki pasand Nirma, everyone’s favorite Nirma, first ran on radio in 1975.