Editors Note: Souravs-One Day: The 24-hour coffee shop housed in the restaurant building named for the Prince of Calcutta. Souravs is a complete dining experience, and One Day is its extremely popular coffee shop. Over here, not only will you find your usual coffees and sandwiches, as expected from a caf, but a sumptuous lunch spread awaits you too. Situated in the citys most happening zone, dont be surprised at the rush youll encounter all day, everyday at One Day.