The waning competitive intensity due to the departure of Jet Airways <br /> <br />has led to significant improvement in yield within the industry, thus helping <br /> <br />the incumbents post strong earnings in Q4 FY19. <br /> <br />Further, the decline in fuel cost in the quarter gone by has helped companies further expand their margin. <br /> <br /> <br /> <br />Sakshi Batra does a 3 point analysis of Q4 results of the biggest Indian airline, InterGlobe Aviation, the parent company of IndiGo.