A CONTRACTUAL employee of the Defence Research and Development Laboratory (DRDL) in Hyderabad, was arrested for allegedly sharing highly secured and confidential information about the DRDL-RCI Complex through social media to a suspected ISI female handler, said Rachakonda Police on Friday. The accused identified as Dukka Mallikarjuna Reddy (29) alias Arjun Bittu was arrested on Friday at Triveni Nagar, Meerpet, Balapur. The police have also seized two mobile phones, a SIM card and a laptop.