Air India has finalised an order for around 250 aircraft with Airbus and the deal is expected to be announced next week, a source said on Thursday.
The source in the know also said the airline has signed a deal with Boeing for about 200 planes.
Specific details could not be immediately ascertained and there was no immediate comments from Air India about the deals.
The Tata group-owned Air India is expanding its operations as well as fleet.
On January 27, Air India chief Campbell Wilson said the airline is finalising a historic order of new aircraft.
Air India, earlier under the ownership of the government, had acquired new aircraft more than 16 years ago.
It has not purchased a single aircraft since 2005 and the last order was for 111 aircraft -- 68 with Boeing Co and remaining 43 with Airbus -- and that deal was worth $10.8 billion.
The source told PTI that the deal with Airbus for around 250 planes has been finalised and the announcement is likely next week.
The deal is likely to include 40 wide-body Airbus A350s and Air India will be the first Indian carrier to operate the aircraft.
In the past, Air India had operated wide-body A330s.
On Wednesday, aviation consultancy CAPA said Indian carriers are likely to place orders for up to 1,700 planes by 2024 and Air India may make the first move with some 500 planes order.
Currently, Indian carriers operate less than 50 wide-body aircraft, an insignificant number for such a significant market.
In contrast, Emirates alone has a fleet of over 260 wide-bodies, CAPA had said.
Recently, IndiGo started wide-body operations on India-Turkey route with a wet-leased B777 and plans to induct two more such planes.
