Indian intelligence agencies and Delhi Police's special cell have busted a terror module of a global terror outfit. They have detained and arrested four operatives from north India. [caption id="attachment_170075" align="aligncenter" width="700"]Security has beefed up at Haridwar Ardh Kumbh Mela (photo: Deepak Saluja)[/caption] One person has been arrested and three of his associates detained by a team of Delhi Police's Special Cell at Roorkee in Uttarakhand. The arrested and detained suspects have been identified as Akhlaq, Osama, Mohd Azim & Mohd Mahroz. They are likely to be produced before a court later. The suspects are believed to have been planning an attack at the ongoing Ardh Kumbh Mela in Haridwar, a police source said. The Special Cell tracked down the suspects in a joint operation with a central intelligence agency and they are conducting search operations throughout Uttarakhand, the source said. The detained suspects are also being questioned in connection with the recent terror attack at Punjab's Pathankot as he is believed to have links with terror outfit Jaish-e-Mohammed, the source said. Their link with Islamic State (ISIS) is also being probed.