Canadian aviation authorities have asked Air India to investigate an incident where a pilot was found to be under the influence of alcohol before a flight from Vancouver to Delhi on December 23. The pilot failed two breathalyser tests and was removed from duty, causing a flight delay. Transport Canada has deemed the matter serious, citing potential enforcement action, and has requested corrective steps from Air India by January 26. Air India confirmed the incident, stated the pilot is off flying duties pending inquiry, and maintains a zero-tolerance policy.