Kejriwal made the comments at a solidarity meeting on the JNU campus.
The Chief Minister said Najeeb, who has been missing for over two weeks now, will come back only when Prime Minister Narendra Modi could be made to realise that he is losing votes over the issue.
"Najeeb will come back only when Modiji will realise that he is losing out on votes of youth. The movement for demanding justice for Najeeb needs to come to mainstream. The vice chancellor is also scared that if he will take any action he will also go missing," Kejriwal said.
"Whoever will raise any voice against RSS, ABVP or BJP will be called anti-national, will go missing. If Najeeb was Ambani's son Modi ji would have taken a flight to visit him but this will not attract his attention," the AAP chief said.
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He also wondered why no one from the ABVP who was part of the campus brawl been questioned by the Police. Kejriwal said he has written to Union Home Minister Rajnath Singh and will take a delegation to President Pranab Mukherjee when he returns from his Nepal visit.
The appeal by the authorities came in the wake of protests by various student groups and teachers for the last two weeks over Najeeb's case.
"Alargenumberoffaculty,students,officersandstaff
haverepeatedlyapproachedtheJNUadministrationexpressing theirdiscomfortanddisagreementwiththefrequent politicisation andholdingofdharnasandpublicmeetings neartheadministration buildingandtheacademicareas," the appeal issued by Vice Chancellor Jagadesh Kumar said.
"Despiteallefforts,pamphlets,posters,demonstrations, dharnas,unlawfulconfinementandoffensivesloganeeringhave been goingontospreadliesand toblametheadministration andmakeunreasonable demands. Attemptsarebeing made to disturbthenormalfunctioningandconduct of academic activities includingexaminations," it said.
Alleging inaction on the part of the administration, Jawaharlal Nehru University Students' Union (JNUSU) has been agitating over Najeeb's disappearance from the campus.
Following a directive from the Union Home Ministry, Delhi Police has formed a special investigation team (SIT) to trace the missing student.
"Sit-ins, publicfunctions, dharnas, puttingtents, shoutingslogan withloudbeatingofmusicalinstrumentshave madeitdifficultforstaffandofficersworkinginthe administration building to carry on with their official duties.
"Theseactivitiesareaviolationofuniversity rules and even rulings by the highest judicial body of the country.Thisuncooperativeattitudehasbeen obstructingthenormalfunctioningoftheuniversity," it said.
"TheAdministrationappealstotheentireJNUcommunity tounitetotraceNajeebandkeepawayfromunnecessary politicisation. To helpJNUcontinuetofocusonacademic excellence,pleasediscourageobstructive politics and protests in the campus," it added.