Get tickets and join the fans at a game at MMRDA Grounds. If there's nothing happening while you're in the area, you might like to check if they give a tour of the grounds.
When you've finished up at this sporting facility in Bandra Kurla Complex, why not make your way to Siddhi Vinayak Temple, Mt. Mary Church, and Powai Lake? They're not too far from MMRDA Grounds and also a hit with travelers.