Unauthorised diesel buses brazenly entered Delhi despite GRAP-4: India Today investigation An India Today investigation, conducted at the Delhi–Noida border, found several unauthorised, diesel-run passenger buses loading commuters in full public view, despite strict anti-pollution curbs under GRAP-4 being imposed. AdvertisementMany of these buses were Euro-3/BS-3 and BS-4 diesel vehicles, explicitly banned inside Delhi, where only BS-6 compliant vehicles are allowed. (Screengrab)Nitin JainNew Delhi,UPDATED: Dec 25, 2025 17:20 ISTEdited By: Anuja JhaEven as Delhi battled a severe spike in air pollution and the city remained under GRAP-4 restrictions — the strictest anti-pollution measures in force — illegal unauthorised diesel buses continued to ply openly on the capital’s roads. In a ground investigation conducted at the Delhi–Noida border, we found several unauthorised, diesel-run passenger buses loading commuters in full public view — right under the nose of law-enforcement and transport authorities. advertisementFor nearly 15 minutes, rows of such buses — some clearly outdated and unfit for use — stood lined up like trains, waiting only for the 9 pm Noida entry window to open so they could slip out of the city with overloaded passengers and luggage.
