The Centre's air quality panel has announced stricter pollution control measures for the Delhi-NCR under Stage 4 of the Graded Response Action Plan (GRAP), effective from 8 am on Monday, including a ban on truck entry and a temporary halt on construction at public projects. The Commission for Air Quality Management (CAQM) issued the order as Delhi's Air Quality Index (AQI) worsened, reaching 441 at 4 pm and rising to 457 by 7 pm due to unfavourable weather conditions. According to the order, no trucks will be allowed into Delhi except for those carrying essential items or using clean fuel (LNG/CNG/BS-VI diesel/electric). Non-essential light commercial vehicles registered outside Delhi will also be prohibited, except for EVs and CNG and BS-VI diesel ones. Delhi-registered BS-IV or older diesel medium and heavy goods vehicles are banned, except for those in essential services, the panel said. All construction activities, including highways, roads, flyovers, power lines, pipelines an