The Directorate General of Civil Aviation (DGCA) has imposed a penalty of Rs 30 lakh on IndiGo due to four tail strikes in 6 months. During audit of the incidents, government’s civil aviation body found deficiency in IndiGo’s training and engineering procedure.The Directorate General of Civil Aviation (DGCA) had earlier suspended the licenses of an IndiGo captain for three months and a co-pilot for one month following an incident involving a tail strike during landing at the Ahmedabad airport, a senior official told IANS.WATCH for more!