New Delhi, May 19 -- Citing a recent order by the Bureau of Civil Aviation Security (BCAS), the Centre on Monday said it is dealing with the most 'delicate' subject of civil aviation and national security and sovereignty of the nation.

In the matter, a bench led by justice Sachin Datta of the Delhi High Court (HC) was hearing a petition filed by Celebi, a Turkish cargo handling and ground operating firm that opposed the BCAS decision to revoke its security clearance.

Appearing on behalf of the government, solicitor general Tushar Mehta clarified the letter's contents, which stated that civil aviation exclusively retains the right to revoke without assigning any reason.

Mehta's comments came after Turkey backed Pakistan and condemned In...