Oman Air flight from Hyderabad cancelled after 8 hours; passengers suffer hours of suffocation onboard

Oman Air's flight from Hyderabad to Muscat was canceled after an 8-hour delay, during which passengers endured suffocating conditions due to a malfunctioning air conditioning system. Despite the prolonged ordeal, no refunds or compensation have been provided. Has anyone else experienced such issues with flight delays and onboard discomfort?