The man, who was slapped by a fellow passenger after suffering a panic attack while being on an IndiGo flight and then went missing, has been found at a railway station in Assam's Barpeta, nearly 800 km from Kolkata, where the plane had landed, media reports said.

Hussain Ahmed Majumdar, 32, from Cachar district in Assam, had boarded a flight from Mumbai to Kolkata on Thursday.

He was supposed to take another flight from Kolkata to Silchar the next day.

Majumdar, 32, was on IndiGo flight 6E-138 from Mumbai to Silchar when he had a panic attack and was being helped by air hostesses.

While he was being taken down the aisle, a fellow passenger Hafijul Rahman slapped him.
 
In a video that went viral online, Rahman can be seen assaulting Majumdar and, when confronted, he said that did so as he was causing him "problems".

After the flight reached Kolkata, Rahman was detained and handed over to the police, but was released later.

Majumdar also left the airport and went missing.

Later IndiGo also placed Rahman on the airline's No Fly List, the carrier said in a statement on Saturday.

“In line with our commitment to discourage such unruly behaviour onboard flights, the individual (assaulter) has been suspended from flying on any IndiGo flights, in accordance with regulatory provisions,” the airline said.

Majumdar, who works at a hotel in Mumbai, had flown the route several times before and his family, unaware that anything had happened, reached the Silchar airport to receive him on Friday.

They tried to contact him after watching the viral video but his cellphone was switched off, NDTV reported, quoting his father, Abdul Mannan Majumdar.

A missing complaint was filed and investigation revealed that Majumdar had not boarded the flight to Silchar on Friday and had not flown out from the Kolkata airport on Saturday either.

The police then received information that he was at the Barpeta railway station and found him there. An official said he appeared unwell and is now being taken home.