Chittagong is a location in 80 Days, populated by the Bengali people. It is still a British colonial holding at the time of Fogg's wager. Passepartout can witness the taking of the city by revolutionary forces while on his way to the visa office, and see the majestic Garuda soaring in the sky. Furthermore, he can protect a Welsh army officer from the revolutionaries and be offered a trip to Imphal. Or, if Passepartout chooses, he may save a Bengali revolutionary's life and travel to Imphal with them. After both routes, Passepartout can continue further on with his companions to Pangsau Pass.
It is also possible to leave the city, as long as routes are known in advance. If Passepartout traveled from Colombo aboard the SS Thunder, he can leave the city aboard the steamship as long as he does not sleep or explore the city. If Passepartout managed to obtain an Indian Train Timetable, he can instead take the train to Guwahati where he will be forced to travel to Pangsau Pass nevertheless.