Noida vehicle ban begins under GRAP-3, restricting BS-3 petrol and BS-4 diesel vehicles as traffic police step up CCTV enforcement. Noida vehicle restrictions target BS-3 petrol and BS-4 diesel vehicles as GRAP-3 pollution controls begin across Delhi-NCR. Data from the Noida transport department showed that Noida and Greater Noida had 9.7 lakh registered petrol and 1.3 lakh diesel vehicles as of October.