Deepak Mann was arrested yesterday for allegedly using unfair means during the exam held in December last year.
CBI sources said searches were conducted at Rajinder Nagar and Prahladpur Bangar village in outer Delhi which resulted in seizure of a bluetooth device which was used for conveying the answers in the examination hall.
28-year old former sub-inspector, Deepak Mann, who had appeared in its third attempt with Philosophy subject in the examination allegedly used a specially designed vest, shirt, and get-up to hide wires of customised bluetooth device through which he was communicating with his accomplice Archana Singh and two others sitting outside the centre.
She said the accused used a wrist watch-like looking device to clandestinely copy the question papers during the Civil Service (Main) Examination on various dates in December, 2013 to transmit them using blue-tooth enabled mobile telephony equipment to his team of solvers who were stationed at his apartment.
"The team of solvers then obtained answers, including through recourse to popular on-line websites on the Internet like Wikipedia, etc. And transmitted the same to him using mobile telephony equipment," she said.