New Delhi, Sept 10 : Delhi Police’s Crime Branch on Monday arrested six people, including the prime accused Ashok Kumar Singh, a coal contractor and coal mafia, for attempting to murder the (Steel Authority of India Limited) SAIL Chairman Anil Kumar Chaudhary in August. Singh owns a trading business. In 2017, he had signed a contract with SAIL, under which, his company had to import coal from the US and he had paid Rs 80-85 crore for the same. However, the material was rejected by SAIL on inspection over its poor quality and his order was rejected. As a result, his money could not be recovered. Singh tried to pressurise the SAIL Chairman to reconsider his decision of rejecting the consignment, but when Chaudhary refused, he hatched a plot to seek revenge. To execute the plan, Singh contacted his acquaintance Sunil Barala, who also roped in his brother-in-law Chutku, to arrange four men to attack Chaudhary. He was attacked on August 7 in South Extension area as he was returning home from office. A road rage attack was planned by the assailants. They followed Chaudhary’s car and mid-way, attacked him with iron rods, sharp weapons and small knives.