India, Nov. 6 -- Authorities implemented Stage 3 of the Graded Response Action Plan (Grap) as Delhi's air quality index, currently at 382 in the 'very poor' category, inched closer to the 400 mark, which would put it under the 'severe' category. The restrictions aim to curb dust pollution and emissions across Delhi-NCR.

Under Grap-3, strict restrictions have been imposed on several construction and demolition activities across the National Capital Region, which includes cities of Uttar Pradesh's Noida, Ghaziabad as well as Haryana's Gurugram.

The activities prohibited under Grap Stage III include excavation, filling, boring, drilling, piling, demolition, brickwork, masonry, road construction and major repairs. Activities such as paintin...