India, May 21 -- Turkey-based Celebi Aviation on Wednesday told the Delhi high court that its security clearance was revoked without prior notice, calling the decision "a bolt out of the blue."

The firm argued, "We are an Indian company. Our employees are Indian," as it challenged the Centre's decision to revoke its security clearance, citing concerns over national security.

Senior advocate Mukul Rohatgi, appearing for Celebi Aviation Services India Pvt Ltd, told the Delhi High Court that the company has been operating in India for 17 years and employs over 10,000 people across several airports.

He argued that Celebi's security clearance, granted in 2022 under Rule 15 for five years, was suddenly revoked by the government without any p...