Aviation regulator DGCA on Monday suspended an IndiGo captain for three months for “intimidating and threatening” a wheelchair-bound senior citizen on a Chennai-Bangalore flight on January 13, an official said.

During investigation, it was found that the pilot-in-command had “insisted” on an apology letter from the passengers — the senior citizen and her daughter — which held them up for about 75 minutes after deboarding began at Bangalore airport.

“It was established that the pilot-in-command’s attitude towards the wheelchair-bound senior citizen passenger was intimidating, threatening and lacked compassion. The DGCA has suspended his licence for a period of three months,” the official said.

Journalist Supriya Unni Nair had asked for a wheelchair for her 75-year-old mother after landing in Bangalore on the night of January 13. According to Nair, the cabin crew had said they did not have access to wheelchair assistance. The captain intervened and misbehaved and threatened Nair and her mother with jail, the tweets said.