Mumbai, June 9 -- One man was killed, and six others were injured on Monday after an electric bus of Mumbai's civic-run transport undertaking BEST ploughed into five vehicles near Plaza Cinema in Dadar, the latest in a series of accidents that have intensified scrutiny of BEST's wet-lease electric fleet. The accident took place around 9.30am, when the driver of the single-decker e-bus lost control over the vehicle and crashed into a kaali-peeli taxi, two scooters and two private cars, police said. BEST has set up a four-member committee to investigate the incident, officials said. The deceased was identified as Niyaz Ahmed Shaikh, 26, a delivery rider from Null Bazaar. Among the injured, 22-year-old student and part-time delivery rider Vrishabh Gupta is in critical condition with head injuries. "The driver had pulled the handbrake and was filling his duty form. The primary information we received is that when the driver dislodged the handbrake, the bus zipped uncontrollably," said a BEST official on condition of anonymity. "He was unable to apply the brakes, too, which allegedly had failed. We will have to verify this," the official added....