The matter has been communicated to the concerned authorities so that the youths can be identified at the earliest, a police source said today.
Of the eight persons in the shortlisted photographs, a few can be seen to have wrapped a muffler around their face. The police have questioned several persons in connection with the same, the source added.
Earlier, Delhi Police Commissioner B S Bassi had also said that some of the youths who allegedly raised seditious slogans at the JNU event were outsiders and the police are trying to find them out.