A monthlong "Tree Fair" is going on at the Sher-E-Bangla Nagor Fair premises (DITF premises). It is open for all and no ticket is required. So it is all gratis!
I visited the place twice. Though the proportion of the visitors is not in great numbers, I appreciate the initiative. People are buying tress according to their demand.
(http://server.webbangladesh.net/~photowe/images/uploaded/3817_image-010.jpg)
A file photo of a Tree fair
All of DIU family is requested to visit (the fair). It will be furled up at the end of this month.
Note: DIU has a project of making Dhaka Green. You have certainly seen the "Beautification Project" in different traffic islands around Dhaka city, where a great number of trees are planted and cared. DIU has the plan to extend this project more and more in future.