Chennai-bound Indigo flight from Delhi diverted to Hyderabad following ‘smoke’ onboard, lands safely

A domestic IndiGo flight scheduled to travel from Delhi to Chennai was forced to change its course after crew members detected smoke emanating from a passenger’s personal electronic device. The aircraft, a Boeing 737‑800, departed Indira Gandhi International Airport at the scheduled time of 0640 GMT and, shortly after reaching cruising altitude, the cabin crew reported an unusual odor and visible smoke in the forward section of the cabin. The flight deck was alerted, the pilot declared a precautionary emergency and requested immediate clearance to land at the nearest suitable airport, which was Rajiv Gandhi International Airport in Hyderabad.The decision to divert was taken in accordance with the airline’s safety protocols, which dictate that any indication of fire or smoke on board must be addressed without delay..

The flight’s captain, who preferred not to be named, explained that the smoke appeared to be confined to a single passenger’s seat area and that the source was quickly identified as a personal electronic device, most likely a mobile phone or tablet, that had begun to overheat. The crew instructed the passenger to switch off the device and, when the smoke persisted, isolated the seat by turning off the surrounding power supply.Air traffic control in Hyderabad cleared the aircraft for a rapid approach, and the plane touched down safely at 0735 GMT, roughly fifteen minutes after the diversion request was made. Passengers were kept informed throughout the incident via the intercom system, with the cabin crew reassuring them that the situation was under control and that there was no immediate danger to the aircraft’s structural integrity..

Upon arrival, emergency services were on standby, though they were not required to intervene as the smoke had been contained and extinguished before the aircraft’s landing.Ground staff at Hyderabad quickly escorted the aircraft to a remote stand, where maintenance technicians conducted a thorough inspection of the cabin and the electrical systems. The investigation, led by the Directorate General of Civil Aviation (DGCA), confirmed that the source of the smoke was indeed an overheating battery within the passenger’s device, which had caused a minor fire that was self‑extinguishing once power was cut. No injuries were reported among the 157 occupants, which included 148 passengers and a crew of nine, and all passengers were subsequently de‑planed and offered assistance, including rebooking onto alternative flights to Chennai.IndiGo issued a statement shortly after the aircraft’s safe arrival, emphasizing its commitment to passenger safety and thanking the crew for their swift response..

The airline also reminded travelers of the importance of adhering to airline guidelines regarding the use of electronic devices, particularly the requirement that batteries be switched off during take‑off, landing and periods of turbulence. The carrier highlighted that its fleet is equipped with smoke detectors and fire suppression systems that are regularly tested to meet international safety standards.The incident has sparked a broader discussion within the Indian aviation sector about the growing prevalence of lithium‑ion batteries in consumer electronics and the associated fire risks they pose on aircraft. Experts from the Indian Institute of Technology have warned that as devices become more powerful and batteries larger, the potential for thermal runaway incidents increases, especially in the confined environment of an aircraft cabin..

They have called for stricter enforcement of existing regulations, as well as the development of new guidelines that could include mandatory battery health checks before boarding.The DGCA, which oversees aviation safety in the country, has launched a formal inquiry into the event. While the preliminary findings point to a single device as the cause, the regulator will examine whether the aircraft’s electrical infrastructure performed as expected, and whether any procedural lapses occurred in the handling of the situation. A report is expected within the next few weeks, after which recommendations may be issued to airlines, manufacturers of portable electronic devices and regulatory bodies alike.Passengers on the flight expressed a mix of relief and concern..

One traveller, who preferred to remain anonymous, recounted the moment the smoke became visible and noted that the crew’s calm demeanor helped prevent panic. Another passenger, a frequent flyer with IndiGo, praised the airline’s quick decision to land in Hyderabad rather than attempting to continue to Chennai, saying that the safety of all on board must always come first. Several passengers also mentioned that they had been using their devices to watch movies during the flight, underscoring the challenge airlines face in balancing passenger comfort with safety imperatives.Airlines across India have already begun to revisit their policies regarding electronic devices..

Some carriers are considering the implementation of additional checks to ensure that passengers’ devices are not only switched off but also that their batteries are within safe operating temperatures before boarding. Others are exploring the feasibility of installing more advanced smoke detection and suppression equipment in the cabin, particularly in the forward galley and passenger sections where such incidents are most likely to be detected early.The Chennai‑bound IndiGo flight is scheduled to resume service later this week, after the aircraft has been cleared by maintenance teams and the DGCA. Passengers who were affected by the diversion have been offered compensation in line with the airline’s policy, which includes meal vouchers and rebooking at no additional cost..

The incident serves as a reminder that, while air travel remains one of the safest modes of transportation, continuous vigilance and adherence to safety protocols are essential to maintaining that record, especially as technology evolves and new hazards emerge..