El-Zakzaky was arrested in Kaduna in December 2015 after some members of his group were killed by soldiers for allegedly blocking the Kaduna-Zaria road.
The IMN members were also accused of plotting to kill the Chief of Army Staff, Lt. Gen. Tukur Buratai.
IMN promptly denied the accusation tagging it a ploy to justify the killing of over 300 of its members by soldiers.
The protesters who gathered at the National Assembly gate were led by the secretary of the academic forum in Nigeria, Abdullahi Musa.
The protesters said that they came to the National Assembly to ascertain the position of the Senate on the continued detention of El-Zakzaky, their leader.
Musa told reporters, “This is the third time we are coming here. We submitted a lot of documents to the National Assembly but we are yet to get any response.
“We submitted the third batch of documents Thursday and we came here today to hear from them.”
Musa noted that although the Federal Government claimed that El-Zakzaky was kept in protective custody, members of IMN believed that government did not tell the truth.
He said, “We do not believe in the so called protective custody. We want him freed so that he can go for his treatment. They have inflicted several injuries on him. What we ask for is that justice should prevail.”
“They killed our member and government has been silent. We want to know what their position is.”
Musa said that members of the movement would continue the protest until their leader was released.
Police Divisional Crimes Officer at the National Assembly, Mr. Frances Anebi, who addressed the protesters, asked them to conduct themselves peacefully.
On November 14, 2016 eight members of the movement were reported killed in Kano.
A police sergeant was also said to have been dead when the police attempted to break a protest mounted by members of the movement.