Hindustan Lever Limited (HLL) was the market leader in the Indian detergent market. In the late 1960s and 1970s, Nirma emerged as a strong challenger offering cheaper detergents and gained significant market share. In response, HLL launched new brands like Wheel at lower prices and improved product quality and distribution to regain market share. While Nirma's growth slowed, Procter & Gamble entered India in the 1990s with the premium brand Ariel, forcing HLL to innovate and focus on different segments of the market to maintain its leadership position.