GRAP Stage-4: The fourth stage of GRAP has come into effect in Delhi-NCR from today. New Delhi. The fourth stage of restrictions under the Graded Response Action Plan (GRAP) will come into effect from 8 am on Monday as air pollution in Delhi-NCR reaches critical levels. The sub-committee of the Central Commission for Air Quality … Continue reading GRAP New Rule: Government closed schools, classes will run online, lakhs of vehicles also banned