Football in India
The Indian Super League, a tournament just recently recognized by AFC or FIFA, was founded in 2013 in an effort to make football a top sport in India and to make Indian football a major player worldwide. The league operates along the lines of the Twenty20 cricket Indian Premier League, and Major League Soccer of the United States. Unlike the vast majority of football leagues around the world, the ISL does not use the promotion and relegation system. Instead, it uses an American style franchise system in which ten teams were specifically created to participate in the league. Each team in the ISL is composed of players from I league or state league, apart from the foreigners who may or may not be a part of the I league. Recently it was recognised as the second national league in India, which means ISL champions from 2017–2018 leagues will be eligible for an AFC Cup qualifying slot
Football in India
State league football is considered the best amateur leagues in India. Each state has their own league in India. There is no promotion/relegation between the state leagues and the I-League 2nd Division but there could be promotion/relegation between leagues within the state. For example, the Calcutta Football League has five divisions with promotion/relegation but the winner of the Calcutta Football League will not get promoted to the I-League 2nd Division. However, apart from the clubs already featuring in the I League, AIFF may select the next best achiever of the state league as an entrant to the I league 2nd Division.