Vistara has a three-class configuration with business, premium economy and economy cabins.
Air India is in a better state now than it was when Lohani's predecessor took over in 2011, four years after a merger with state-run carrier Indian Airlines.
The prospective owners of Indian low-cost carrier SpiceJet Ltd plan to cut the airline's fleet, shrink its network and return to a "plain vanilla" business model to achieve profitability, two people close to the investors said.
SpiceJet has cut capacity by reducing its fleet to 35 Boeing 737 aircraft from 42 in December.
Ajit Singh says will seek cabinet nod to scrap 5-year, 20 aircraft rule.