Billionaire Gautam Adani-led Adani Group is mulling to list its airports arm, Adani Airport Holdings (AAHL), by 2027. The port-to-media conglomerate is planning to invest $100 billion across businesses to fuel its growth plan, Bloomberg reported, citing sources. The development comes around a time when AAHL, which operates eight Indian airports, is set to launch its newly built Navi Mumbai airport this month.