India, July 7 -- The Delhi high court on Monday dismissed Turkey-based firm Celebi Aviation's plea against the revoking of its security clearance in India. Celebi provided ground handling services at nine key airports in India.

Celebi Aviation's security clearance was revoked by the Centre over national security concerns. The firm's licence was cancelled by the security wing of the ministry of civil aviation - the Bureau of Civil Aviation Security (BCAS).

In its filing, the firm called the decision "unsustainable", while saying that no proper reason had been given for the revocation, and that it was done without prior notice, News 18 reported.

The firm had entered India's aviation industry through the Mumbai airport in 2008, eventually...