India, Dec. 13 -- As air quality deteriorates in the national capital, the Commission for Air Quality Management (CAQM) on Saturday implemented Stage III of the Graded Response Action Plan (GRAP) with immediate effect.

Strict anti-pollution curbs were reimposed in Delhi after the overall Air Quality Index (AQI) breached the 400 mark at 10 am today, December 13.

2. Vehicles used by persons with disabilities will be exempted.

3. Hybrid or online classes for students up to Grade 5.

The severity levels have been brought forward, meaning tougher rules will now apply sooner as pollution rises.

Under the proposed system, Stage 4 measures have now been moved to Stage 3. This means public, municipal and private offices will operate at 50% sta...