Mumbai police investigating the Bhandup accident involving a BEST electric bus concluded that driver Santosh Sawant pressed the accelerator instead of the brake. This contradicts the driver's initial claim of an earlier driver's error. The police found no technical issues with the bus, attributing the incident to driver error. Sawant, a permanent BEST employee with 20 years of experience, was arrested and remanded in custody. The accident on Monday night resulted in four fatalities among twelve injured individuals.