Civil Aviation Minister Ajit Singh termed the strike as "illegal" and said the management of the national carrier would take appropriate action against those involved in the stir.u00a0

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"The pilots have been told to return to work by today evening. And if they don't, the management will take stern action against them," Air India spokesperson said.u00a0

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A section of Air India pilots owing allegiance to Indian Pilots Guild are agitating over the rescheduling of Boeing 787 Dreamliner training.u00a0

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Four AI international flights were cancelled from Delhi and Mumbai after about 100 pilots refused to join work. It is understood that the management has also decided to send teams of doctors to the pilots' houses, who are reporting sick.u00a0

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"We have decided to send doctors' team at the residence of the pilots, who are reporting sick. It is our primary duty to enquire about their health," airline sources said.u00a0

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