Mohun Bagan SG, on Tuesday, announced the signing of Mumbai City FC's central midfielder Apuia 'Lalengmawia' Ralte. The footballer from Mizoram, who rose through the ranks by playing for India's age group teams, signed a five-year contract with the Kolkata-based club. By signing the 23-year-old Apuia, Mohun Bagan SG, who won the ISL last season, strengthened their midfield.