After firing Amal Dutta it was TK Chathunni who led the Mariners to their first NFL title...
The 1997-98 season is special in the hearts of the Mohun Bagan fans for the Mariners won their first National Football League (NFL) title.
After an average season in 1996-97 where they won just the Bordoloi trophy, Mohun Bagan roped in Amal Dutta as the coach.
Dutta implemented the famous 'Diamond System' where he fielded his team in a 3-4-3 formation, where a defensive blocker in front of a three-man backline would give the shape of a diamond in midfield.