rickshaw.

Here is the most common form of transportation that i use other than walking.  

You want to be careful picking out a rickshaw as some of the seats are very narrow and tilt forward  - 

making it much easier to throw you out into oncoming traffic when you are hit by a car or are surprised by a sharp turn!

 The first Bangla words I have learned are "Aste Aste" .... slow down!