An IndiGo flight traveling from Ahmedabad to Delhi with a stop in Lucknow makes an emergency landing after a bomb threat message is found on a tissue paper inside the aircraft’s lavatory, according to officials. The aircraft is held and the crew alerts Air Traffic Control (ATC) and airport security shortly before the Lucknow-to-Delhi departure window. ATC informs airport authorities and security agencies, and the plane lands safely at Chaudhary Charan Singh International Airport around late morning. Approximately 180 passengers are evacuated from the aircraft with their baggage while security teams conduct checks. Bomb disposal personnel, CISF staff and other agencies carry out a search lasting close to three hours, and a dog squad screens luggage. Reports state no suspicious object or explosive material is found, and the threat is treated as not credible. After the aircraft is declared safe, passengers are allowed to reboard and the flight later departs for Delhi. IndiGo says it received the security-related alert before departure and cooperates with standard security procedures. Authorities are expected to submit reports to aviation regulators, and legal action is to be considered if the person responsible is identified.