Ndume represents Borno south constituency.
Over 200 persons, carrying placards and banners, on Tuesday morning stormed the national assembly complex to demand Ndume’s reinstatement.
One banner read: “Southern Borno has been suspended from Nigeria’s political space.”
Security operatives were forced to lock the gates of the national assembly after the protesters blocked the entrance.
Ndume was last week suspended for six months for calling for investigations into forgery allegations made against the senate president, Bukola Saraki, and the certificate controversy surrounding Kogi senator, Dino Melaye.