India, June 9 -- The fatal Dadar bus accident on Monday has put the spotlight back on BEST's wet-lease operations, with authorities probing the driver's claim that the electric bus suffered a brake failure moments before it ploughed into five vehicles.

The single-decker air-conditioned electric bus, operated by private contractor Evey Trans (Olectra), had completed its scheduled service on route A-463 (Dharavi Depot to Veer Kotwal Junction or Plaza Cinema) and was returning to the depot when the accident occurred.

According to BEST officials, driver Vikas Padave had reported for duty at 5.30am and had already completed a round trip on the Dharavi Depot-Hutatma Chowk route before operating the A-463 service.

"The driver had pulled the h...