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. The Commission for Air Quality Management (CAQM) has invoked Stage III of the Graded Response Action Plan (GRAP-III) across Delhi-NCR. If you are a daily commuter driving into.