ISL 2021-22: ATK Mohun Bagan are into the play-offs with a win over Chennaiyin FC ISL 2021-22: ATK Mohun Bagan are into the play-offs with a win over Chennaiyin FC By The Away End Media Desk on 4th March 2022 ATK Mohun Bagan became the third team to qualify for the ISL 2021-22 play-offs with a 1-0 win over Chennaiyin FC.