On this day in 1975, the four national leaders--Syed Nazrul Islam, Tajuddin Ahmed, M Mansur Ali and AHM Kamruzzaman--were gunned down inside Dhaka Central Jail. The day is known as Jail Killing Day.

A murder case was filed with Lalbagh Police Station the following day, but the then government halted the process of trial by promulgating an ordinance that indemnified the assassins.

The killing of four close aides to the Father of the Nation Bangabandhu Sheikh Mujibur Rahman came two months and 18 days after Bangabandhu along with most of his family members were assassinated by some disgruntled army men.

On October 20 last year, a Dhaka court awarded down death penalty to three, life imprisonment to 12 and acquitted five in the long-awaited verdict of the historic Jail Killing Case.

The Awami League (AL) alleged that the government interfered in the trial for the gruesome killing of the four national leaders who spearheaded the Bangladesh government in exile during the War of Independence.

The AL will hoist the national and party flags at half-mast and black flags atop party offices in Dhaka and elsewhere in observance of the Jail Killing Day.

Leaders and workers of the AL and its front organisations will wear black badges.

The day's programmes also include garlanding the portrait of Bangabandhu, placing wreaths at the graves of the national leaders at Banani Graveyard and offering fateha and organising milad and special prayers.

A discussion meeting will be held at the Engineers Institution in the city on November 12 with Leader of the Opposition and AL President Sheikh Hasina in the chair.