And August 15, November 3 and August 21 are links of the same chain of conspiracy.
Awami League General Secretary Obaidul Quader said this on Tuesday after paying homage to four national leaders at Banani Graveyard in Dhaka.
"Let us make a promise of uprooting the poisonous tree of communalism and building a prosperous Bangladesh of Bangabandhu on Jail Killing Day," Obaidul Quader.
About the BNP, he said the word integrity does fit it as the party started political corruption in the country.
Earlier in the morning, Quader paid homage to the portrait of Bangabandhu at Dhanmondi 32 in memory of the martyred national leaders.
There, the Awami League general secretary said the four national four leaders were killed in jail to make the country leaderless.
"Much remains unknown about the jail killings of 1975 and an embassy played a shady role at that time."