The central government on Sunday ordered a ban on non-essential construction work and plying of BS-III petrol and BS-IV diesel four-wheelers in Delhi-NCR amid worsening air quality in the region.

Anticipating a prolonged period of severe air quality, the committee decided to implement GRAP Stage-III curbs immediately to prevent further deterioration. The curbs include a ban on non-essential construction work and the plying of BS III petrol and BS IV deisel four-wheelers in the region.