The students and scholars gathered in the main lawns of Allama Iqbal Library this morning to kick start the signature campaign, officials said.
They said the protestors were carrying placards and banners, which read: "We stand for freedom of speech and expression", "we stand with JNU", "Solidarity with JNU", "Dissent is our right", "We question fascism", "Do not label students as terrorist", "His name is Umar Khalid, He is not a terrorist" and "Hanging of Afzal Guru, travesty of justice".
The march culminated peacefully within the campus, the officials said.