Earlier this week, Tata Sons reportedly initiated the process to bring all its airline brands under the Air India umbrella. With this, all its airline brands including Vistara, AirAsia India and Air India Express will come under the Air India brand. It is reported the company may drop the Vistara brand altogether, and Singapore Airlines is expected to be a minority shareholder in Air India, with a few of its board members on the Indian carrier’s board. Experts note that the merger of…