Lucknow | Another incident related to Indigo Airlines came to the fore on Monday when a flight coming from Delhi had to make an emergency landing in Lucknow after receiving threats. The airline said in a statement – Flight 6E 6191 from Delhi to Deogarh was diverted to Lucknow following a bomb threat. All necessary safety protocols were followed and the aircraft was subsequently cleared for take-off. Indigo is following the rules of the security agencies in the investigation.