In a statement, the company said that after checking related materials and the airport CCTV footage, it found the news reports did not conform to the fact.
Instead, the airlines employees offered meticulous service, it said.
The company said it is dedicated to providing quality flight service for passengers around the world.
The Times of India reported on Thursday that North American Punjabi Association executive director Satnam Singh Chahal wrote a letter to Indian External Affairs Minister Sushma Swaraj to complain that he had unfair treatment at the Shanghai airport as he took China Eastern Airlines flight MU564.