The Light Combat Helicopters are seen as another milestone in Indian efforts to reduce dependence on Russia, its main source of arms, and other suppliers.
The Airbus A340 operated by Iranian carrier Mahan Air, with a capacity of between 320 and 475 passengers, was headed from the Iranian capital Tehran to Guangzhou in China.
The breach covered hotels in Hong Kong, Singapore, Chiang Mai, Taipei and Tokyo but the company said it had not yet been able to determine what data had been stolen.
Chauhan, described as a "China expert" by local media, had been serving as counsel to India's national security adviser after his retirement from active service last year.
US State Secretary Antony Blinken defended military supplies to Pakistan on Tuesday in response to criticism from India, a growing US ally which sees itself as the target of Islamabad's F-16 aircraft.
US visa services are still attempting to clear a backlog after Washington halted almost all visa processing worldwide in March 2020 due to the pandemic
Numerous members of a Muslim organisation were detained by Indian authorities on Tuesday after they were accused of engaging in violent and anti-national behaviour.
In line with PM Modi's drive for self-reliance, India has over the years expanded the use of its regional navigation satellite system called NavIC (Navigation with Indian Constellation).
The self-made billionaire's net worth surged $4 billion overnight to $154 billion, according to Forbes, ranking him ahead of LVMH's Bernard Arnault and Amazon's Jeff Bezos.
