This document summarizes the brand war between Rin detergent produced by HUL and Tide detergent produced by P&G in India. It describes the introduction and growth of each brand. In the late 2000s, Tide gained market share threatening Rin's leadership position. This led to price cuts and competitive advertising campaigns by both brands. In 2010, HUL directly challenged Tide's claims of being "natural" in court and launched an advertisement comparing Rin favorably to Tide. In response, P&G took HUL to court over the comparative advertisement.