India, May 22 -- Turkish firm Celebi Aviation's subsidiary moved the Bombay High Court on Thursday to challenge security clearance revocation and contract termination at the Mumbai airport by India's civil aviation regulator, the Bureau of Civil Aviation Security (BCAS).

The BCAS revoked security clearance for Turkish company Celebi Airport Services India Pvt Ltd on May 15, citing "national security" concerns. The move follows mounting tensions between India and Turkey over the latter's diplomatic and arms support to Pakistan during the four-day military clash with India post the Pahalgam terror attack on April 22.

Three petitions were filed on Wednesday by Celebi Nas Airport Services India, which handled airport ground handling service...