The cyber section of the Kolkata Police will conduct an examination of the mobiles to examine messages exchanged among those friends on Whatsapp, Snapchat and Facebook before and after the death of the 17-year-old on Saturday, a senior police officer said today.
It was learnt that out of the 15 persons present at the party, a few have "deleted" some of their messages as well as their posts on social media, he said.
Meanwhile, Kolkata Police sleuths have called some of Aabesh's "friends" again today for another round of grilling.
Seven "friends" and writer Amit Chaudhuri and his daughter were questioned in connection with the matter yesterday.
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Police also visited a south Kolkata club, where the birthday of Amit Chaudhuri's daughter was celebrated on Saturday and spoke to the officials there.
CCTV footages of the club were also seized for further investigation, another officer confirmed.
Aabesh, a class XI student, died of wounds inflicted by glass shards and the police registered a murder case against "unknown persons" on the basis of his mother's statement.