The notice that is addressed to the JNU vice chancellor contains names of students affiliated to the Left student groups which dominate the campus politics.
Some of the students, whose names figure in the notice, including AISA (All India Students' Association) leader Shehla Rashid, and Aprojitha Raja, the daughter of CPI national secretary D Raja, were active in a movement demanding release of the three students who were arrested in the case.
However, the police said that it is a "routine examination".
"It is a routine exercise and we have been carrying it out for sometime now. We are just examining witnesses so that no side feels that they haven't been heard," said a senior officer from the Special Cell that is probing the case.
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The notice has listed three dates--April 27, 28 and 29-- but the students named in the notice didn't join the probe today.
There is a likelihood that apart from the three students named in the FIR--former JNU students' union president Kanhaiya Kumar, Umar Khalid and Anirban Bhattacharya-- more people might be named in the charge-sheet, whenever it is filed.
The JNU students' union, in a statement, condemned the notice and called it a "criminal agenda" of destroying the university.
"We see this as another attempt to target and threaten students and ultimately to fulfil the government's criminal agenda of destroying a university where the battle of ideas and critical thinking are well-cherished practice," read the statement.
The controversial programme organised last year sparked an outrage after allegations surfaced that anti-national slogans were raised in the university.
The arrest of Kumar catapulted him to national fame and resulted in student protests across the country.
After footage of the event was found to be authentic, some students, including two Kashmiri students, were questioned by the Special Cell sleuths last year.
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