The GRAP 3 curbs in Delhi include ban on demolition and construction activities, and entry of certain vehicles inside Delhi-NCR, among other curbs, to prevent further deterioration of air quality.

GRAP stage 3 will come into force at 8am on Friday. The Delhi government announced that classes for primary schools will be shifted to online.

Delhi air quality plummets to alarming levels every year in the winter. The air quality in the capital remains in the 'severe' category prompting the authorities to impose the third stage of GRAP.