The Indian Premier League (IPL) is a men's Twenty20 (T20) cricket league, organized by the Board of Control for Cricket in India, the national governing body of cricket in India. T20 cricket is a shorter format of the game, with each team playing a single innings of 20 overs. The inaugural season of the IPL was held in 2008, and the tournament has been held annually in India ever since. Currently, ten teams compete for the championship. Since the league's inception, eight teams have won the title, with the Mumbai Indians and Chennai Super Kings both securing five titles each.