Dubai, United Arab Emirates: India’s Jet Airways confirmed on Monday an order for seventy-five Boeing 737 planes previously listed on the US manufacturer’s book as for an undisclosed client.

It was the first big announcement at the Dubai Air show, which opened Sunday amid low expectations for major sales.

‘The order, previously attributed to an unidentified customer, includes conversions of 25 Next-Generation 737s to 737 MAX 8s, as well as options and purchase rights for an additional 50 aircraft,’ Boeing said in a statement released at a joint press conference at the Dubai Airshow.

‘The announcement marks the largest order in Jet Airways’ history and supports the airline’s replacement strategy,’ the statement said.

The Boeing 737 MAX 8 plane costs $110 million at list price.

The carrier, partly owned by Etihad Airways, has a fleet of 115 aircraft.

‘This order is an endorsement of our confidence in the long-term prospects of the Indian aviation sector, which reflects the positive forecast for the country’s economy, and offers tremendous potential for growth and development,’ said Natesh Goyal, chairman of Jet Airways.

Boeing Commercial Airplanes Chief Ray Conner said ‘the 737 MAX will bring new standards for fuel efficiency and economics, and a premium passenger experience to Jet Airways.’

The plane being developed by the US manufacturer is touted as being more cost effective than its competitors.