Mr Buhari was removed without bloodshed by midnight on August 26, 1985.
Over three decades after this incident, the execution of Mr Vasta in 1986 has remained a major criticism against Mr Babagida-led regime.
The CDHR president said Mr Babaginda’s confession was an attempt to deceive Nigerians into believing he meant well for the country by his action at the time.
He insisted that Mr Babangida offer a public apology rather than simply reflecting on the incident for the sake of his book launch.
Mr Obi, who came third in the 2023 presidential poll, has remained a thorn in the side of Mr Tinubu and his ruling party while claiming to have won the election.
Femi Falana, human rights activist and lawyer, has excoriated President Bola Tinubu over the arraignment of minors for treason punishable by death.
Mr Obasanjo said, “I thank God for giving you strength to celebrate 90 years.’’
The event is in remembrance of the annulment of the June 12, 1993 presidential poll.
The president will meet ex-military dictator Ibrahim Babangida in Niger.
Nigeria’s former Chief of Army Staff, Maj.-Gen. Chris Alli, was laid to rest at the National Military Cemetery, Abuja, on Wednesday.
