ATK Mohun Bagan took a big step towards booking a semi-final spot with a 2-0 win over Bengaluru FC in the Indian Super League (ISL) in Margao on Sunday. The defeat ended all hopes for the Blues of making it into the top-four. As for the Mariners, they remained third, level on points with second-placed Jamshedpur FC. Liston Colaco (45 1) scored his eighth goal of the season from a sensational free-kick to give his team the lead. Manvir Singh (85th) added a second goal late in the game to put the result beyond doubt. An early chance saw Colaco testing Lara Sharma from a direct free-kick, but the goalkeeper was steadfast in collecting the ball.