European planemaker Airbus' 1,000th A320neo Family aircraft, an A321neo, was delivered to India's largest airline IndiGo on Thursday. IndiGo took the delivery of the aircraft from Ireland-based CDB Aviation, a subsidiary of China's CDB Leasing. The Gurugram-headquartered airline has the world's largest A320neo Family fleet with 96 aircraft operating alongside 129 A320s.