New Delhi, May 23 -- The Delhi High Court on Friday reserved its judgment on the plea filed by Turkish company Celebi Airport Services India Pvt Ltd, challenging the aviation regulator Bureau of Civil Aviation Safety's (BCAS) decision to revoke its security clearance, citing "national security" concerns.

Justice Sachin Datta reserved the order after hearing extensive arguments from both sides. Solicitor General Tushar Mehta informed the court that he would submit written arguments by the following day.

Senior advocate Mukul Rohatgi, representing Celebi, contended that Rule 12 of the Aircraft Rules, 2013, is legally binding unless specifically overturned by Parliament. He argued that security-related regulations must be strictly followed...