E-Challans At Toll Plazas: The Bihar Transport department and traffic police have issued over 16,700 e-challans worth Rs 9.49 crore in a week through e-detection system installed in 13 toll plazas in the state for violation of motor vehicle act. E-Challans At Toll Plazas: The Bihar Transport department and traffic police have issued over 16,700 e-challans worth Rs 9.49 crore in a week through e-detection system installed in 13 toll plazas in the state for violation of motor vehicle act. Zee News :Business