Gurugram, Sept. 17 -- Around nine people sustained minor injuries after a cement mixer truck allegedly lost its brakes and ploughed into seven cars and two motorcycles on the Gurugram-Faridabad road late on Tuesday, leaving mangled vehicles strewn across the road and triggering a nearly four-kilometre jam, police said on Wednesday. The pile-up, which involved 11 vehicles including the truck, triggered a traffic jam stretching nearly four kilometres and left hundreds of commercial and private vehicles carrying commuters stranded for more than two hours, police said. The congestion began around 9.45pm and continued until midnight, traffic officials said. At least four of the injured people went to hospitals on their own after sustaining minor bruises in the crash, police said. No medico-legal report (MLR) was generated in any of the cases, they added. The traffic disruption also affected Ghata T-point and Rajesh Pilot Marg. Several passengers and families returning from outstation trips were forced to abandon their cabs and walk nearly two kilometres with their luggage to Gawal Pahadi to find transport towards Delhi and Faridabad. Police said most of the nine commuters who were injured suffered minor bruises and cuts and were discharged from various hospitals after receiving first aid. Other commuters escaped unhurt, they said. The pile-up involved seven cars, including an electric cab and a newly purchased Maruti Grand Vitara bearing a temporary number, two motorcycles and two trucks. One of the trucks was the cement mixer, while the other was a dumper carrying 20 tonnes of stones, police said. The cement mixer truck driver was uninjured and has not been detained as no FIR has been registered in the case yet, police said. A police officer at the spot said the cement mixer truck's brakes failed while it was travelling downhill towards Paras Quartier from Ghata T-point at around 9.45pm. "It kept crushing all the vehicles that were moving in front of it and ultimately slowed down after ramming the dumper truck carrying boulders," he said, asking not to be named. The officer said the impact caused the dumper to break through the roadside crash barriers and climb over them before stopping just feet away from toppling into the creek. "The runway mixture truck was somehow stopped by placing rocks below its wheels," he said. Police said they reached the spot after receiving information about the crash and immediately rushed occupants who had suffered injuries or reported discomfort to hospitals. "After receiving an alert about the crash, I reached the spot and immediately rushed all those occupants who had any kind of injuries or discomfort to hospitals. None had any severe injuries, and everyone survived," the officer said. Cranes were deployed to remove the mangled vehicles from the spot one by one. Police said traffic movement resumed by 11.30pm and the jam was completely cleared within an hour. Dr Danish Rajput, a resident of Delhi's Chattarpur, whose car was completely crushed by the cement mixer truck, said he was unable to believe that he had survived. "The moment my car was crushed, I thought it was my end. I came out the wrecked and checked myself and could not find even a single bruise. It is my second birth," Rajput told HT at the spot. Rajput said he was returning from his clinic at Spaze Corporate Park in Sector-69 when the crash occurred. "Seven cars, including mine, were crushed by the mixture truck. We all occupants survived. The driver either faced a technical problem or was drunk," he said. Rohit, a commuter who was trapped in his car, said he had to travel only around 600 metres but remained stuck behind the crash site for nearly two hours. "Entire traffic has been blocked. Vehicles were forced to move in the wrong lane," he said. Sandeep Turan, public relations officer of the Gurugram police, said the investigation found that the cement mixer truck's brakes had overheated and failed, causing the vehicle to go out of control and crash into the cars. "None of the car owners or occupants have filed any complaints yet against the case. Police teams were deployed for several hours at the spot to handle the traffic jam and clear the debris," Turan added....