The bird strike caused a minor damage in one of the engines of the plane.
"A bird hit IndiGo flight No. 6E-158 on way to Delhi from Ahmedabad with 143 passengers and six crew-members on board. Following this, the plane turned back and landed at Sardar Vallabhbhai Patel International Airport here," a senior official of the airport said.
"However, no passengers suffered any injuries and they were accommodated in another flight to Delhi within an hour," he said.
Sources in the private airline also confirmed the incident.