MUMBAI: Rakesh Gangwal, the billionaire cofounder of IndiGo and airline industry veteran, is determined to root out what he regards as poor corporate governance at parent InterGlobe AviationNSE -5.69 %, regardless of how much this may cost. He’s doing it for the greater good. “The nation can ill afford IndiGo faltering. IndiGo is now very much intertwined with the economic well-being of the country,” he told ET in an interview. “Look at the nation — how many companies have got into trouble...... ET