Tata Sons has started the process of due diligence of state-owned Air India and its subsidiary Air India Express. Sources said the group has appointed Bain and Company and Seabury Group for this purpose.
Once complete, a financial bid will be submitted and a deal to take over the airline is likely to fructify by end of this year or even earlier, people involved in the process said.
Simultaneously, the group has brought in veterans in the aviation business from Delta and United Airlines to prepare a plan for post-merger integration of Air India with its existing airline ventures.
Tata Sons operates Vistara