Mohun Bagan Day is observed in India every July 29, celebrating the historic achievements of Mohun Bagan A.C., a Kolkata-based football club founded in 1889. This day commemorates the club's landmark victory on July 29, 1911, when it became the first Indian team to defeat a European team, the East Yorkshire Regiment, in the IFA Shield while playing barefoot. This victory is significant not only for Indian football but also in the context of the country's struggle for independence. Established in 2001, Mohun Bagan Day includes the presentation of the Mohun Bagan Ratna award to outstanding former players of the club, with Sailen Manna being the first recipient. The observance highlights the club's rich history and its status as one of the oldest football clubs in Asia, fostering a sense of pride among its supporters.