New Delhi/Kolkata: He suffered a heart attack on an Air India flight from Bangkok to Mumbai but the passenger got some medical attention on board after doctors on ground relayed advice to the pilots from the ATC tower till the aircraft made an emergency landing in Kolkata.

As the condition of the male passenger on Flight AI-331 continued to deteriorate on Wednesday night, the pilots radioed the Kolkata air traffic control to report the onboard medical emergency, according to the state-owned air carrier. Some time later, the pilots, Sarabjeet Singh and Pranay Misal, sought permission to make an unscheduled landing at the Kolkata airport and asked the Air Traffic Control(ATC) to keep medical teams on stand-by.