Enforcement teams from the Delhi government's Transport Department have issued challans to such buses for violating the guidelines: Rai

If diesel buses entered Delhi, the Delhi government’s negligence is to blame, said BJP, asking Rai to clarify what steps have been implemented at Delhi’s borders to prevent entry of diesel vehicles

Delhi Environment Minister Gopal Rai accused BJP-ruled neighboring states of worsening the capital's pollution by sending BS IV diesel buses despite a ban. Rai stated that these states are deliberately violating GRAP III guidelines by sending prohibited vehicles.

Sachdeva claimed it has been established beyond doubt that the two major causes of pollution in Delhi are toxic smoke from stubble burning in Punjab and the dust, debris from Delhi’s broken roads.