Football in India
National Football League, established in 1996 by governing body All India Football Federation (AIFF) was the first "semi-professional" football league in India. 
The League was renamed and restructured and the I-League was founded in 2006 after India's former top league the National Football League disbanded in a successful effort aimed at increasing the game in India. Links with clubs that were not in the I-League were maintained, and each season the bottom two clubs are relegated from the I-League and replaced by two from the I-League 2nd Division. The I-League is currently contested between 11 clubs. The Kolkata Derby in the I League (and other tournaments) played between Mohun Bagan and East Bengal is one of the most fierce rivalries in the world (featured in FIFA website) and one of the oldest derbies in the world (90 years). An average 80, 000 to 100, 000 supporters throng the stadium in this special fixture.
Indian Women's League
On 21 April 2016, over a year after the AIFF started plans for a women's football league, the AIFF President, Praful Patel, said that a women's football league would kick off in October 2016 with six teams to be decided, with the goal to expand to eight teams by 2017. Just over two months later, on 5 July 2016, the AIFF organized a workshop to discuss the India women's national team and discuss the proposed women's football league. Five Indian Super League sides (Delhi Dynamos, Chennaiyin FC, Kerala Blasters, FC Pune City, Atletico de Kolkata) and three I-League teams (Bengaluru FC, Aizawl FC, Mumbai FC) attended the workshop. It was announced that the league would feature the eight teams in the league and two other spots would be determined through a pre-qualification round.