The drills were carried out simultaneously at Rajiv Chowk (terror attack), Chawri Bazar (toxic gas release), Rithala (bomb blast at parking area) and Shastri Park (call about planting of bomb at train depot) at about 0615 hrs, a Metro official said. The exercise, monitored by the National Disaster Management Authority, was the first mock drill on disaster management conducted in the capital. Various agencies-- Metro, district administration and police-- were involved in conducting the drill, which used multi-hazard situations to review efficacy of state and district administration in responding to the problem. At Rajiv Chowk station, a mock attack was carried out by four people attired in the CISF uniform opening fire and throwing grenades at the platform.
The 'attackers' also then managed to partially switch off the lights at the platform, with complete darkness prevailing in station control room, the official said. Chawri Bazar, Metro's deepest station located 120 feet down from surface, was subjected to a 'chemical attack', believed to be the release of highly-toxic Phosgene, during which the efficiency with which authorities evacuated passengers were checked.
The third drill was carried out at Rithala station where mock car and motorcycle blasts were triggered at the parking area by using crackbusters and smoke candles. The fourth one was done at Shastri Park to assess how Metro and district administration respond to a call threatening to blow up train depot located in the station.