On Thursday evening, the couple started to quarrel and Pandi, after beating up his wife Parvathy, went to bed in an intoxicated condition. Police said an infuriated Parvathy took a bottle of petrol from the house and poured it on Pandi and triggered a fire. Police said Parvathy managed to come out of the house and locked the main door so that Pandi could not escape. The neighbours rushed to the spot and broke open the door and Pandi was taken to the KMC. They also caught Parvathy and handed her over to Madipakkam police station.