The 2020–21 ATK Mohun Bagan FC season was the club's 1st season in Indian Super League and 131st season since its establishment in 1889.[2][3] The club under a merged company competed in ISL, one of the top flights of Indian football, as well as in the AFC Cup (because of delays, the AFC Cup campaign has been moved to 2021–22 season).
Source: Indian Super League Rules for classification: 1) points; 2) head-to-head points; 3) head-to-head goal difference; 4) head-to-head goals scored; 5) goal difference; 6) number of goals scored; 7) fair play ranking; 8) drawing of lots (C) Champions; (L) League Winners' Shield Winners
Results by matchday
Matchday
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Ground
A
A
H
A
H
H
H
A
H
H
A
H
A
H
A
A
H
H
A
A
Result
W
W
W
L
D
W
W
D
W
L
D
W
L
W
W
W
W
W
D
L
Position
1
1
1
2
2
2
2
1
1
2
2
2
2
2
2
2
1
1
1
2
Updated to match(es) played on 28 February 2021. Source: Indian Super League A = Away; H = Home; W = Win; D = Draw; L = Loss