Air India has insisted that there is “absolutely no truth” in reports that a lizard was found in an in-flight meal on a Delhi-London flight on Thursday.

Its denial follows the publication of a picture on social media which purportedly shows the reptile’s head underneath a bun on a meal tray.

It is not clear from the photo if the creature is dead or alive.

The state-owned airline has dismissed the report as a “false and baseless hoax” launched to tarnish its image.

The alleged incident took place when the flight attendants were serving lunch, The Times of India reported.

Soon after it was placed on to the tray, the passenger was heard screaming," it quoted a source as saying.

The source said that the lunch was wrapped in cling film and the lizard scurried from underneath a burger.

“The passenger was very upset and said that he would lodge a complaint with the airline on landing,” the source was quoted as saying.

But Air India was swift to deny the allegation.