Delhi's environment minister, Gopal Rai, visited ISBT Kashmere Gate and blamed vehicles, particularly those from neighbouring states, for the rising pollution in north Delhi. He alleged that BS-III diesel buses were to blame for the pollution and urged the Centre to implement a complete ban on such buses in the NCR areas of Haryana, Uttar Pradesh, and Rajasthan. From November 1 onwards, only CNG, electric, and BS-VI buses will be allowed to enter Delhi from neighbouring states. Rai also stated that checks will be conducted at all entry points and action will be taken against non-compliant buses.