New Delhi, Oct. 22 -- With air quality in Delhi slipping into the 'poor' category, the statutory measures mandated under Stage I of the Graded Response Action Plan (GRAP) have come into force across the National Capital Region (NCR) from Wednesday.

Revised by the Commission for Air Quality Management in the National Capital Region and Adjoining Areas (CAQM), GRAP classified deteriorating air quality into four distinct stages, with Stage I automatically invoked when the Delhi Air Quality Index (AQI) hovers between 201 and 300.

As citizens grapple with the onset of winter smog, here are some common questions surrounding the operational status of schools, what remains permissible and what faces outright bans across Delhi.

Under Stage I of...