Various historical events and people of different time-frame have come together in this novel. The time has a secret dark door. Through that dark door, one can travel from one time-frame to another. This door is the main character of this novel. There is a typical interactive range across the various shades of history. A historical fantasy. Romantically political. An important social documentation. This novel is a statement. A polemic. Of course a landmark and a celebration of Bengali language.