BENGALURU: Three men were arrested for allegedly attempting to extort money from a factory owner in Kamakshipalya, west Bengaluru, after threatening to set his factory ablaze.The accused were identified as Chandan SH, 26, Gagan Gowda L, 26, and D Basavaraj, 27, all residents of Sanjeevininagar who belong to Nagamangala They claimed to be from Karnataka Prajashakti Samiti, a social organisation, police said, adding that they would display Kannada flags on their vehicles and threaten businessmen. A manhunt has been launched for four more suspects who remained incommunicado.A person called Nagaraj approached police saying seven men were demanding Rs 50,000 from him. Nagaraj runs a small-scale factory in Pete Channappa industrial area. “They barged into my factory on the morning of August 30 and asked me for licence and other related documents. When asked who they were, they said they are from Karnataka Prajashakti Samiti and they can get my licence cancelled. Then they demanded Rs 50,000 as a contribution for their organisation. I told them they couldn’t go to that extent as I had done nothing wrong and refused to pay. They threatened me saying they would set my factory on fire,” Nagaraj told police.Cops, posing as Nagaraj’s personal assistants, called the numbers provided by the miscreants, asking them to come near the factory on August 31 to collect the cash. Three men fell for the trap and were arrested immediately. “We seized their Mahindra Scorpio, shawls with the name of their organisation and visiting cards,” police said.