Northern India is experiencing a severe cold wave and dense fog, leading several states to extend school holidays and adjust schedules for student safety. Uttar Pradesh has closed all schools until January 1, 2026. Bihar and Jharkhand have extended closures until December 31, with adjusted timings for higher classes. Himachal Pradesh has also extended holidays due to snowfall and hazardous conditions, while Rajasthan schools are observing their scheduled winter breaks.