Schools in Uttar Pradesh, including all UP Board, ICSE, and CBSE institutions up to Class 12, will remain closed until January 1 due to cold conditions and dense fog. Noida's district administration has also declared holidays for all schools from December 29 to January 1. Many schools in Delhi NCR were already closed for winter breaks, with parents advised to check individual school calendars for reopening dates. Northern India, including these regions, is under an orange alert for dense fog.