The assaulted engineer has also reportedly filed an FIR against the pilot.
According to media reports, the incident took place in the cockpit of the Chennai to Delhi-to-Paris bound Air India 143 flight.
Reports said an argument broke out between the pilot of the aircraft and the concerned engineer after the flight was reportedly delayed for between four and four-and-a-half hours.
It is being said that the assault took place following arguments with about 25 to 30 passengers who reportedly wanted the Paris leg of the flight to take off later than its original scheduled time from Delhi because of the delay in take off from Chennai.
As of now, no reason is being given as to why the pilot assaulted the engineer.
At the time of the filing of this report, tension was prevailing at the airport.