Indian football league system

The Indian football league system is the league structure of football club competitions in India. The highest level of men's club football competition is the Indian Super League. Indian Women's League, founded in 2016, is the highest level of women's football club competition in India.

Men's
The Indian men's football league system consists of the top 4 national divisions organized by the All India Football Federation (AIFF) and commercial partners FSDL. From tier 5 are the various regional state football leagues, organized by the respective state associations under AIFF affiliation.

National Football League (1996–2007)
Founded in 1996, the National Football League was the first football league of India to be organised on a national scale, in an aim to develop the sport & give platform for Indian footballers in a club league. However, due to several problems the league was defunct to make way for a new professional I-League.

I-League (2007–2022)
After the end of 2006–07 season, AIFF disbanded the NFL after allegedly missing the full aim of professionalism. To replace NFL, AIFF introduced a fully professional I-League, with ten clubs from the last season of NFL participating in the maiden season of I-League. The league was declared as joint top tier in 2019–20 season when AFC approved AIFF's proposal to demote the AFC Champions League slot, for the AFC Cup. Three seasons later the league was completely demoted to second tier status in Indian football, with the league champions now promoted to the Indian Super League.

Indian Super League (2017–present)
The I-League suffered from lack of popularity due to poor marketing as the seasons passed by. The deal between the Zee Sports and the AIFF, which was initially signed for a ten-year term in 2006, was terminated in 2010 after disagreement between both the parties. AIFF then signed a new 700-crore deal with Reliance Industries and the International Management Group on 9 December 2010. The Indian Super League was officially launched on 21 October 2013 by IMG–Reliance, Star Sports, and the All India Football Federation with an aim of growing the sport of football in India and increasing its exposure in the country, this time with the big names and high professionalism.

In 2017, The AFC were against allowing the ISL as the main league in India, while I-League clubs East Bengal and Mohun Bagan wanted a complete merger of the ISL and I-League. A couple of weeks later, the AIFF proposed that both the Indian Super League and I-League should run simultaneously on a short–term basis, with the I-League winner qualifying for the AFC Champions League and the ISL champion to AFC Cup qualification stage. The proposal from the AIFF was officially approved by the AFC on 25 July 2017.

Two seasons later the AIFF and AFC announced in a meeting that the Indian Super League was officially the top-tier league of India with the AFC Champions League slot, while the I-League was with the AFC Cup slot. The first recommendation was to open a pathway for two I-League clubs to enter into the ISL by the end of the 2020–21 season, subject to the criteria being fulfilled. The second recommendation was allowing the winner of the I-League to stand a chance of getting promoted to the ISL with no participation fee, starting with the 2022–23 season. In its final recommendation it was agreed that the introduction of promotion and relegation into the top league would be implemented by the end of 2024–25 season, thus making ISL the top tier & I-League officially being 2nd tier competition.

NFL Second Division (1997–2007)
The NFL's second division was introduced by AIFF in 1997 to supplement the top division. After the 2006–07 season, all the three tiers of NFL were defunct and replaced with I-League and I-League 2nd Division respectively.

I-League 2nd Division (2007–2022)
The National Football League's second division was succeeded by the I-League 2nd Division in 2008. The state FAs nominated top teams from their respective state leagues to AIFF who then selected the clubs based on criteria. The number of clubs in this league varied each season. Since 2017–18 season, the league saw introduction of I-League reserve sides which weren't eligible for promotion since I-League was then the top division. After I-League lost its top tier status, I-League 2nd division too was demoted to third tier, re-establishing India's third tier since NFL's Third Division in 2006.

I-League (2022–present)
Starting from the 2022–23 season, I-League lost its top-tier status. The champions of the 2022–23 I-League were promoted to the ISL with no participation fee. In its recommendation for 2024–25, it was agreed to fully implement promotion and relegation between the two leagues.

NFL Third Division (2006)
Ten years after the formation of NFL, a third division was briefly introduced for one season in 2006 The NFL Third Division was the first third division tier football league in India to be organized on a national scale. The league was played from 25 November till 18 December 2006 as a promotional tournament for Indian National Football League Second Division. Five teams were promoted to the second division. Starting from the 2022–23 season, I-League 2 filled the void in the third tier left by NFL Third Division in 2006.

I-League 2 (2022–present)
After demoting I-League to the second tier status in Indian football, its second division i.e., I-League 2nd Division was subsequently demoted to third tier. AIFF renamed the 2nd Division to I-League 2 to avoid disambiguation.

I-League 3 (2023–present)
I-League 3 is set to serve as a platform for state champions and nominated teams. It forms the fourth tier of the Indian football league system, between the I-League 2 and the state leagues. No ISL reserve teams will be part of it.

Indian state leagues
There are currently total of 36 state associations (including union territories) affiliated with the AIFF. These state associations have state leagues concurrently running. The top teams of state leagues are eligible for the I-League 3 (national 4th tier). Most state leagues have multiple divisions and a promotion/relegation system between these divisions. Calcutta Football League (Oldest football league in Asia) in West Bengal is the oldest state league and has the highest number of divisions with promotion/relegation system in place.

Women's
The women's football league system in India currently consists of top tier national league i.e. Indian Women's League, organized by the All India Football Federation (AIFF). From 2023-24 IWL 2nd Division will form the tier 2, and top 2 clubs will be promoted to IWL. Tier 3 are the State football leagues, organized by regional state associations under AIFF affiliation, in the league tier pyramid of women's football in India.

Future Youth league system
On 7 January 2023, the AIFF unveiled Vision 2047, a new roadmap for Indian football with the planned reforms in India's league system.

National football championships
The national football championships are competitions contested among the regional state associations and government institutions under the All India Football Federation. Currently, six championship competitions are divided into age groups for both men and women. For sponsorship ties, it is referred to as the Hero National Football Championships.

Senior NFC (Santosh Trophy)
The Santosh Trophy is a men's football competition contested by the regional state associations and government institutions under the AIFF. Before starting the National Football League in 1996, the Santosh Trophy was considered the top domestic championship in India.

Senior Women's NFC
Senior Women's National Football Championship for Rajmata Jijabai Trophy is the women's football tournament which is contested among the regional state, territory federations and government institutions of India. It began to play in 1991. The league consisted of 30 teams for the 2019–20 season.

U-20, Junior & Sub-Junior NFC
The U-20 National Football Championship or Swami Vivekananda U20 National Football Championship is a national level inter-state championship for boys under the age of 20. All affiliated State Units of AIFF are eligible to participate in this championship.

The Junior National Football Championship or BC Roy Trophy is for the Junior age groups, which was started in 1962. All affiliated State Units of AIFF are eligible to participate in this championship through the two tiers of the competition played across the country.

The Sub Junior National Football Championship or Mir Iqbal Hussain Trophy is a national level inter-state championship for boys under the age of 16, which was started in 1977. All affiliated State Units of AIFF can participate in this championship through the qualifying round.

Junior & Sub-Junior Girls' NFC
The U-19 Junior Girls' National Football Championship was first introduced in 2001.

The U-17 Sub-Junior Girls' National Football Championship was first introduced in 2003 and held at Ooty.

Institutional League
AIFF introduced the Institutional League for the institutional clubs. The league is not part of the Indian football pyramid.