India, April 9 -- An Indian national flying to Bangkok by an early morning Air India flight allegedly urinated on a co-passenger sitting in front of him on Wednesday, people familiar with the matter said.

The precise circumstances around the incident, which took place on the airline's AI2336 flight from Delhi, are still unclear. The people cited above said the passenger, who was also flying business class, immediately apologised for his behaviour.

The victim is the top executive of a multinational firm and is yet to press charges. He told the crew that he did not want to waste his time after landing.

An Air India spokesperson confirmed the incident of "unruly passenger behaviour" on its AI2336 flight on April 9.

"The crew followed all...