An Indigo flight from Kolkata to Hyderabad had to make an emergency landing at Biju Patnaik International Airport (BPIA) here on Thursday evening after a passenger complained of chest pain. The flight was diverted here as Jayabrata Ghosh complained of breathing problem after taking off from Netaji Subhas Chandra Bose International Airport in Kolkata. After flight landed at BPIA, a doctor examined Ghosh and diagnosed him to have suffered a cardiac arrest. The patient was in an unconscious and non-responsive state. He was already put on oxygen therapy and cardiopulmonary resuscitation (CPR) was also done. Ghosh was shifted to Emergency Ward of Capital Hospital here. However, the attending doctors declared him dead.