The Commission for Air Quality Management (CAQM) has informed the Supreme Court that over 63 lakh old, polluting vehicles are still running in Delhi. These vehicles add heavily to the capital's air pollution. Additional Solicitor General Aishwarya Bhati, representing CAQM, said strict efforts to remove these end-of-life vehicles failed because of weak enforcement and a Supreme Court order on August 12 that lifted restrictions on them. Till June 2025, only 35,558 vehicles were impounded in Delhi compared to 22,397 in 2024, showing slow progress. CAQM reported that petrol vehicles over 15 years old and diesel vehicles over 10 years old still roam Delhi-NCR despite higher pollution risks. The report highlighted that BS-III vehicles have been in use for over 15 years, BS-II vehicles for more than 20 years, and BS-I vehicles for 24 years in Delhi. These older vehicles emit more pollutants despite being 'fit' by other standards. Pollution worsens in winter due to weather conditions, pushing the need for strict vehicle emission rules. CAQM also said about 93% of vehicles in Delhi-NCR are light motor vehicles and two-wheelers. It has ordered that from November 1, 2026, only CNG, EV, or BS-VI diesel buses can enter Delhi from outside, except for buses registered in Delhi. The Commission urged Delhi and nearby states to make delivery services, e-commerce, and motor vehicle aggregators switch quickly from diesel and petrol to cleaner vehicles. Plans are also set to phase out old diesel auto-rickshaws in NCR by 2026 in a step-by-step, time-bound way. These measures come amid rising alarm over Delhi’s worsening air quality, especially during colder months. The CAQM’s update to the Supreme Court calls for urgent and stricter action on vehicle pollution to protect citizens' health.