2020–21 Indian Super League

The 2020–21 Indian Super League season was the seventh season of the Indian Super League (ISL) since its formation and the 25th season of the top division of the Indian football league system. The season started on 20 November 2020 and ended on 13 March 2021. It was hosted behind closed doors across three venues in Goa due to the COVID-19 pandemic in India.

Mumbai City won the championship, having defeated ATK Mohun Bagan in the final, and also won the League Winners Shield for league premiers. Thus, Mumbai City became the first club to win the ISL championship title and the League Winners Shield in a single season.

Changes from last season

 * Each club has the option of signing a minimum of five and a maximum of seven foreign players. Still, unlike the previous season, there should be at least one overseas player who hails from an AFC–affiliated country.
 * The maximum squad size is increased as the clubs are allowed to register up to 35 players in their squad.
 * The number of substitutions allowed has been increased from 3 players to 5 players.
 * Due to the COVID-19 pandemic, all matches during the 2020–21 season will be played behind closed doors across three venues in Goa. The venues will be the Fatorda Stadium in Margao, the GMC Athletic Stadium in Bambolim, and the Tilak Maidan Stadium in Vasco da Gama. The host venues for each team were revealed on 18 August 2020.
 * In June–July 2020; KGSPL, the owners of ATK, officially disbanded their football team and bought a majority stake in Mohun Bagan FC (India) Private Limited and rebranded Mohun Bagan football section as ATK Mohun Bagan which took the spot of ATK
 * On 27 September 2020, East Bengal joined the league as an expansion team and thus became the 11th team.
 * Due to all the matches of the League being played in neutral venues, there will be no away goal rule to be applied in the playoffs this season.

Foreign players
Bold letters suggest the player was signed in the winter transfer window.

Hat-tricks

 * Result column shows goal tally of player's team first.

(H) – Home team (A) – Away team
 * Notes

Player

 * Most yellow cards: 8
 * 🇮🇳 Pronay Halder (ATK Mohun Bagan)
 * 🇦🇺 Erik Paartalu (Bengaluru)


 * Most red cards: 2
 * 🇲🇦 Ahmed Jahouh (Mumbai City)

Club

 * Most yellow cards: 61
 * Mumbai City


 * Most red cards: 4
 * East Bengal
 * Jamshedpur
 * Goa