IndiGo airlines boss Ronojoy Dutta today said India's aviation regulator has done "a superb job" in diligence lately, claiming that Indigo is "one of the safest airlines in the world as per long-term trends". The Chief Executive Officer was speaking to NDTV as the private carrier completed 16 years. About recent incidents involving IndiGo and other airlines, he said, "We have had a couple of incidents on diversions but none of them were safety issues."