There are a lot of bars in the city where you can catch a view of the sun tucking itself in for the night while you nurse a chilled cocktail or two. Two of the most famous (and most expensive) are The Dome at the Intercontinental and Aer at the Four Seasons. For a cheaper and more charming option, however, we suggest you check out Cafe Marina at the Sea Palace Hotel. A 4th floor rooftop bar, Cafe Marina makes up for its height with an unmatched view of Mumbai's beautiful harbor.
Beers here are good value, the food, though limited, is tasty, and the service friendly. Best of all, even the music is on point in a city where commercial is king! Food includes kebabs, grills, and continental fare.
To get there by cab, tell the driver to take you to Radio Club in Colaba. The Sea Palace Hotel is a couple buildings away facing the harbor.