Director Shanmugam Muthusamy, whose upcoming film 'Diesel' showcases details of a petrol-diesel scam and the mafia behind it, says that he even received death threats from some people when he got down to probe and find out details of how this network operated. Participating in a pre-release event of the film, which features actors Harish Kalyan and Athulya Ravi in the lead, director Shanmugam Muthusamy, who took 10 long years to collect details and come up with a story before making it into a film, said, "The spark for the story of diesel came from an incident that happened when I was travelling on the highway. I had stopped to take a bite at a motel on the highway when observed that young boys in their teens were stealing bucketfuls of petrol and diesel from a tanker lorry parked there."

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