"Our son is innocent. He is not at all involved in such an action," Mustaq Ahmed Sheikh, father of Sohaib, told reporters here today.

Mustaq and his wife said that investigation must be initiated against their son and he should be hanged if found involved in the matter.

The BA first year student was picked up yesterday after a three-hour search at a college in Kishtwar and whisked away to Global Cyber Cafe for interrogation by a joint team of police, NIA and cyber experts led by Deputy Inspector General (Kishtwar-Doda-Ramban range) Muneesh Sinha.

The others who were picked up and interrogated in this regard included Global Cyber cafe owner Mehmood Aziz Khawja, his brother Majid Aziz, Manager Ashwami, Imran, Ashiq Hussain and Sunny.

Investigators have traced the HuJI email claiming responsibility for the blast outside the Delhi High Court to a cyber cafe in Kishtwar and today detained five persons in this connection including the cafe owner.

The email was sent from a cyber cafe in Kishtwar from the address harkat-uljihadi2011@gmail.com. The outfit had on Wednesday claimed responsibility for the blast outside the Delhi High Court which killed 13 people