Recap how mohun bagan won the i league 2019 20 title

I'm happy to help! However, I need to correct you - Mohun Bagan did not win the I-League 2019-20 title. Instead, ATK won the title by defeating Chennaiyin FC 3-1 in the final on March 8, 2020.

Here's a brief summary of the season:

• The 2019-20 I-League season was the 12th season of the I-League, the top division of Indian football.
• The season started on November 30, 2019, and ended on March 8, 2020.
• ATK, led by coach Antonio López Habas, dominated the league, winning 18 out of 20 matches and finishing with 42 points.
• Chennaiyin FC, led by coach Owen Coyle, finished second with 29 points.
• The final match was played at the Fatorda Stadium in Goa, and ATK won 3-1, with goals from Roy Krishna, David Williams, and Prabir Das.
• ATK's victory marked their second I-League title, after winning their first title in the 2013-14 season.

Mohun Bagan, on the other hand, finished third in the league with 28 points, behind ATK and Chennaiyin FC.