New Delhi, Nov. 26 -- The Commission for Air Quality Management on Wednesday revoked the restrictions under Stage 3 of the Graded Response Action Plan (GRAP) in Delhi-NCR and directed to intensify the curbs under the first and second stage of GRAP in the capital and its surrounding areas.

Curbs under GRAP 3 prohibited all inter-state buses from NCR (except electric vehicles, CNG vehicles and BS-VI diesel buses) from entering Delhi, with schools operating in hybrid mode for classes up to Standard 5, among other measures.

Here's what changes under GRAP I and GRAP II:

GRAP Stage 1 mandates the following measures in Delhi:

2. Ban on open waste burning, limit diesel generator use, and ban the use of coal or firewood in eateries.

3. Public...