On November 11, a handwritten hijack threat was discovered in the lavatory of an Air India flight (AI 2772) scheduled to depart from Kolkata to Mumbai. The note, reportedly written with lipstick on a mirror, claimed the plane would be hijacked at 11:10 AM. The pilot immediately informed air traffic control, triggering a high alert at Kolkata's Netaji Subhas Chandra Bose International Airport. The aircraft was moved to an isolation bay and all passengers were safely deplaned. Security personnel and a bomb disposal squad were mobilized. This incident follows a similar threat on an IndiGo flight (6E 451) with 178 passengers traveling from Bengaluru to Lucknow, which was diverted back to its origin after a comparable note was found; authorities later confirmed that incident to be a hoax. Aviation expert Vikram Singh stated, "These incidents, whether real or hoaxes, cause tremendous anxiety among travelers. They highlight the importance of adhering to safety protocols in such situations." Security forces are currently investigating the authenticity of the Air India threat note.
