New Delhi, Nov. 19 -- The Supreme Court on Wednesday directed that construction workers out of work since the implementation of GRAP-3 in Delhi, Punjab, Haryana, and Rajasthan, must be provided a subsistence allowance.

Hearing the air pollution case, a bench led by Chief Justice of India (CJI) BR Gavai also directed the governments of the aforesaid states to implement preventive measures to reduce air pollution and to ensure that their reviews are regularly conducted.

The Supreme Court has also stated that matters concerning air pollution must be listed monthly.

"We find that any proactive action aimed at reducing air pollution levels is welcome. However, authorities taking such decisions should consider all factors and take care of al...