When he turned up on Wednesday, he signed the attendance register at about 10:30am before proceeding to the upper legislative chambers just as the Senate was going into a closed-door session.
Na'Allah, who read out the synopsis of the letter to be sent to the senators, noted that the testimonies given by various security personnel at the National Assembly Complex before the panel had implicated Omo-Agege and Ndume.
"Based on the testimony of the sergeant at arms before the committee, you (Mr Ndume) are alleged to have prevented the mace keeper from taking away the mace to safety. The committee has, therefore, deemed it necessary to invite you in order to respond to that allegation".
Omo-agege is expected to face a joint adhoc committee investigating the invasion of the National Assembly later today, to explain his role in the imbroglio.
But the presiding judge, Justice Nnamdi Dimgba, rejected the application which the Senate jointly filed with its president, Dr. Bukola Saraki.
"In the coming days, those who have a responsibility to offer explanations on this matter will appear before the committee", he said.
"I have not received any communications yet and I don't want to comment on it", he said.
It will be recalled that the high court had in its judgment, held that the reason the Senate adduced for suspending Omo-Agege was unconstitutional.
The Senate had on April 12, 2018 suspended Omo-Agege over a "dissenting comment" on decision of the upper chamber on adoption of conference report on Electoral Act (2010) Amendment Bill.Omo-Agege, however, went to court to challenge his suspension and the court, in its ruling, declared the action unconstitutional, saying that the Senate could not suspend a member beyond 14 days.
By 10:55 a.m. when plenary started, Mr Omo-Agege did not show up.
An Abuja Division of the Federal High Court has refused a stay-of-execution order requested by the Senate, against a previous ruling of the court regarding the suspension of Delta State Senator, Ovie Omo-Agege.
The above mentioned Senators had "allegedly" assisted the thugs who make away with the Senate Mace which was later recovered by the police who claims they are investigating the incident.
Giving details of the refusal of the court to grant the request, Mr. Omo-Agege's media aide, Efe Duku, said the judge ruled that the application sought by the Senate bordered on the initial motion filed by Mr Omo-Agege.