Katni: A magisterial inquiry has been ordered into the fire that claimed six lives, including those of three children and a two-month-old infant, at a three-storey residential-cum-commercial building in Madhya Pradesh’s Katni district on Diwali night. Katni Collector Ashish Tiwari has constituted a four-member committee headed by Additional Collector Nilambar Mishra to investigate the cause.