Noida vehicle restrictions target BS-3 petrol and BS-4 diesel vehicles as GRAP-3 pollution controls begin across Delhi-NCR. Noida vehicle ban begins under GRAP-3, restricting BS-3 petrol and BS-4 diesel vehicles as traffic police step up CCTV enforcement. Ahead of Diwali, CAQM invoked Stage III of GRAP across Delhi-NCR as a precaution against worsening pollution. The curbs include bans on many construction activities, older vehicles and.