chennai unidentified men allegedly threatened a jewellery shop owner at gunpoint near thiruvallur on tuesday a case has been registered and an investigation is onthe rk pettai police said hanumanth kumar a jeweller of ammaiyarkuppam at rk pettai in the thiruvallur travels to chennai every tuesday to buy jewellery he then sells them in his shop at rk pettai this tuesday around 9 pm when he was returning home two men on a motorbike broke the cars windshield when it was near the tiruttanirk pettai state highway the cars driver sped away towards the police station but the duo followed them and brandished the gun at hanumanth kumars and rode awayhanumanth kumar filed a police complaint