The woman, who was driving a car, claimed that the accused's cab had brushed past the two-wheeler on Thursday night, they said.
When the women scooter riders protested, the cab driver tried to attack them. The complainant, who was passing from there, saw the driver and asked him to back off, a police officer said.
The driver, who was allegedly in an inebriated state, ran towards the complainant and punched her before the passers by could intervened. The incident was captured in a CCTV camera, the officer said.