After gas leak at Visakhapatnam chemical plant, a similar incident has been reported from Chhattisgarh's Raigarh. According to reports, seven workers were hospitalised after being exposed to gas leak at a paper mill in Raigarh district. Raigarh Superintendent of Police Santosh Singh said, 'Seven workers of a paper mill have been hospitalised after being exposed to a gas leak, reportedly while cleaning a tank in the mill. Three of them are in critical condition. The owner of the mill tried to hide the incident from us and did not inform police. A case will be registered.'