Ujjain : With the sharp increase in temperature, toll of arson cases have hiked across the city. This time it was AG Malwa incense factory situated at industrial area of Maksi road. An estimated loss of Rs. 5 lakh occurred during the mishap. Fire broke around 5 AM of Wednesday morning when it was spotted by guardsmen, who immediately informed to factory owner Kutub Bhai, and Fire Fighters were rushed to the spot immediately. It took twelve fire engines and 4 hours to douse the fire. Fire safety official had problems while operating because of the raw material which was spilled on the floor all around, and no proper safety measures were arranged at the factory. No injuries were reported.