The Ministry of Home Affairs (MHA) has instructed all states and union territories to conduct nationwide mock drills on May 7 across 244 civil defence districts, including 27 locations in Assam. Of these, 23 fall under Category II and 4 under Category III. The drills will assess the effectiveness of air-raid sirens, blackout procedures, infrastructure camouflage, and evacuation rehearsals. Assam CM Himanta Biswa Sarma confirmed the order, with SOPs to follow a Chief Secretaries' meeting. Officials discussed civil defence upgrades, hotline setups, and coordination with the Air Force. The last similar exercise was held before the 1971 India-Pakistan war.