"21st Freyaari" is a Bengali language novel written by famous Bengali writer Humayun Ahmed. In this novel, he presents images on various topics of the world, such as society's mistakes, good, misfortune, help, self-confidence etc. One of the few main characters in this novel is "Anis", who lives a responsible life within the family and society.

This novel is admired for Humayun Ahmed's writing ability, familiarity with the characters, romantic setting, and natural way of solving various problems and grievances of the society. It has gained recognition as a classic novel in Bengali literature like other stories.

"21st Fryary" is a unique historical and cultural phenomenon of Bangladesh. It is the name of a military and cultural organization established after the independence war of Bangladesh. "21st Frayary" was formed at the end of 15 years in the political and military situation of Bangladesh.

During this time, Bangladesh's recent history of conflicting political factions and military conflict took place amid extremes. This period saw the rise of non-military grassroots forces, which challenged government and political parties.

The "21st Friary" was notable as a movement organization, active in espionage and paramilitary activity. The purpose of this organization was to institute freedom and human rights in Bangladesh.

Militarily, the "21st Friary" was programmed as an armed organization, participating in the military struggle against separatist factions.

Socially, the "21st Friary" was a human rights institution, and they were largely inspired by passenger courts and human rights organizations.

The main objective of this organization was to support the people in their struggle for state morality, human rights, democratic governance, and military liberation.