IndiGo, which has grown rapidly to become India's biggest airline by market share, has now ordered 530 A320 family planes from Airbus, the planemaker said in a statement.
Nokia is hiring software experts, testing new products and seeking sales partners.
Some investors have questioned whether James is less attached to some parts of the media empire that his father built
Nokia sold its once-dominant handset business last year.
The mobile -- billed as the world's slimmest phone at 6.5 mm thick -- will go on sale in 31 markets, including Britain, Germany and China, starting this month for 449 euros ($630) without a SIM card or service contract.
Investors have been looking forward to hearing about Nokia's next steps since it announced the 5.4 billion euro ($7.5 billion) Microsoft deal in September.
Airbus recaptured the aircraft industry's top spot in the first quarter of 2013 as US rival Boeing fell behind on orders and grappled with the grounding of its newest jet, the 787 Dreamliner.