Outside Dhaka’s five-star hotels, facilities for travellers with disabilities are almost non-existent in Bangladesh, and conditions in general make travelling extremely challenging. Some footpaths are difficult for even the able-bodied to traverse. In fact, with its squat toilets, overcrowded buses and absence of elevators in all but the finest buildings in Dhaka, the country is largely hostile in its conditions for all but the most fit and able.
On the other hand, hiring private transport and guides, and enlisting the services of a tour company to help you get around, is much cheaper than in other countries. Remember, however, that there are no Bangladesh-based travel companies that specialise in travel for travellers with disabilities.
For more information about accessible travel, download Lonely Planet's free Accessible Travel guide from http://lptravel.to/AccessibleTravel.