In a repeat of what occurs every year, Delhi is engulfed by toxic smog as air quality remained in the "severe" category at the onset of winter in the national capital, media reports said.

The national capital continued to choke with a thick layer of smog on Thursday, with the AQI recorded in the "severe" category for the second consecutive day this season.According to the latest information updated at 8 am at AQICN,

With air pollution reaching alarming levels, the Central pollution watchdog has announced the enforcement of stringent curbs under Stage 3 of the Graded Response Action Plan