Speakers at a webinar said the killers of Bangabandhu and the conspirators tried to destroy the secular spirit of 1971 Liberation War by converting Bangladesh into an Islamic Republic.
They laid emphasis on helping the young generation know proper history about how the killers of August 15, 1975 were rehabilitated and the activities of the then governments after 1975.
The researchers and politicians talked about the role of Khandaker Mostaque Ahmed, General Ziaur Rahman, HM Ershad and Khaleda Zia with elaborate information and how they rewarded the killers of August 15 saying these activities are needed to be recorded for the next generation.
The speakers also spoke about the roles of various countries at that time.
How Mostaque joined conspiracy to overthrow Bangabandhu's government and grabbed presidency, declared martial law after the assassination of Bangabandhu and the overthrow of his government on August 15, 1975 were discussed.
State Minister for Foreign Affairs M Shahriar Alam, columnist and researcher Syed Badrul Ahsan, columnist Subhash Singha Roy, Professor Shams Rahman and writer and researcher Hasan Morshed joined the discussion moderated by Prime Minister's Special Assistant Barrister Shah Ali Farhad.
The State Minister said the primary destination of the killers was Bangkok and they were continuously rewarded by Mostaque, Zia, Ershad and Khaleda.
On August 15, 1975, the Greatest Bangalee of all time, Father of the Nation Bangabandhu Sheikh Mujibur Rahman along with most of his family members was assassinated.
Eighteen members of Bangabandhu's family including Bangamata Sheikh Fazilatunnesa Mujib, three sons-Captain Sheikh Kamal, Lieutenant Sheikh Jamal and 10-year old Sheikh Russel, two daughters-in-law Sultana Kamal and Rosy Jamal, brother Sheikh Abu Naser, peasant leader Abdur Rab Serniabat, youth leader Sheikh Fazlul Haq Moni and his pregnant wife Arzu Moni, Baby Serniabat, Sukanta Babu, Arif and Abdul Nayeem Khan Rintu, among others, were also killed on that fateful night.
Bangabandhu's Military Secretary Brigadier General Jamil was also murdered.
Several members of a family died in the capital's Mohammadpur area by artillery shells fired by the killers on the same day.
Shahriar said the government knows the location of two of the killers.
The fugitives are: Col (dismissed) Khandaker Abdur Rashid, Lt Col (relieved) Shariful Haque Dalim, Maj (retd) Noor Chowdhury, Maj (retd) Rashed Chowdhury and Risaldar Moslehuddin Khan.
Noor Chowdhury is now in Canada while Rashed Chowdhury in the USA and other fugitives -- Rashid, Dalim and Moslehuddin are likely to be in Pakistan, Libya and any African country.
"We hope we'll be able to locate them," Shahriar said adding that there is a challenge as the killers changed their names.
He said the government efforts will continue until the fugitive killers are brought back to execute court verdict.
Journalist Babrul Ahsan said the killers of August 15 were seen again and again after 1975 and they always maintained a good connection with Libya.
The journalist also mentioned the role of Pakistan, USA and Libya at that time.
He also described how Zia, Ershad and Khaleda built up friendship with Pakistan.
"We shouldn't forget who played what role. Young generation should know it. The history needs to be recorded," said the senior journalist.
Shams Rahman also laid emphasis on keeping the young generation informed about the events. "It's everybody's responsibility to keep writing on those episodes."
Subhash Singha Roy described how the conspiracy kept rolling before and after 1975, formation of Freedom Party and the killers of Bangabandhu were given protection.
He said even the innocent students were fed distorted historical facts.
The anti-liberation forces involved in the carnage initiated the politics of killing, coup and conspiracy in the country right after the August 15, 1975.
They also impeded the trial of Bangabandhu murder by promulgating Indemnity Ordinance.
Ziaur Rahman illegally took over the state power and promulgated Martial Law by desecrating the democracy and suspending the Constitution.
Zia rewarded the killers of the Father of the Nation and gave them jobs at the Bangladesh missions abroad and gave the anti-liberation war criminals nationality, made them partners in the state power and rehabilitated them politically and socially, said the government.