Jul 07 2015 : The Times of India (Mumbai) Security alert: Drone hovers near TISS, BARC  Ahmed Ali  Mumbai:    An unidentified drone hovering around 20m above the Tata Institute of Social Sciences in Trombay on Monday afternoon triggered a security alert as the Bhabha Atomic Research Centre, which is on the terror hit-list, is located nearby.The incident comes more than a month after a pilot alerted the Air Traffic Centre on sighting parachute-like objects over the airport. On May 26, Dharmanandan Diamond Pvt Ltd, a Surat-based diamond firm, released helium balloons for promotional merchandise to mark a cricket tournament at the Air India ground, which is adjacent to the runway near the old Kalina airport. Police arrested two men, including the event organizer, in the case. Sources said that around 12.30pm, unidentified persons flew the drone at a height of 20m for few minutes in the area and then fled in a waiting private car. A professor from TISS, who was passing by, noticed the drone and immediately alerted the police control room. The professor, who is now the prime witness in the case, has recorded the incident. He has handed over the video footage to police. “We are examining the video clips. Prima facie, it appears that it may be some event management firm practising a videoshoot as nowadays more and more people are engaging event organizers with drone cameras,“ said deputy commissioner of police (zone 6) Sangramsingh Nishandar. Joint commissioner of police (law and order) Deven Bharti said, “Despite a ban, some event organizers use drones for shoots without prior permission. We have been regularly informing event organizers that they should take permission from the civil aviation and the police. We will definitely catch the culprits in this case and take strict action.“