Schools in Jharkhand and Bihar will remain closed until December 31, 2025, due to severe cold wave conditions. In Ranchi, classes from KG to 12th grade are suspended, with minimum temperatures expected around 8-10 degrees Celsius. Patna has closed schools up to 8th grade until December 30, while classes 9-12 will operate with adjusted timings. Pre-board and board examinations will proceed as scheduled.