India, Oct. 31 -- Under the revised Grap restrictions to curb air pollution in Delhi-NCR, vehicles without valid Pollution Under Control (PUC) certificates won't be allowed into the capital from Sunday, November 1.

The restriction is a tightening of measures by the Commission for Air Quality Management (CAQM), the panel that coordinates pollution control measures, under its the Graded Response Action Plan (Grap). In October, CAQM directed authorities to ensure that pumps in the region refuse to sell fuel to vehicles without the certificates.

"Strict vigilance and enforcement of PUC norms for vehicles and stop visibly polluting vehicles by impounding and/or levying maximum penalty," the Delhi Police said in an advisory posted on X on Fri...