This document summarizes the brand war between Rin detergent produced by HUL and Tide detergent produced by P&G in India. It describes the launch and marketing of each brand. Initially Tide was losing market share to Rin, but after 2007 its sales increased and it posed a threat to HUL. This led to intense price competition between 2009-2010 as each company tried to gain market share through advertising claims and price cuts. The document outlines the key legal battles between the two companies over advertising claims during this period.