NEW DELHI (Reuters) -Turkey-based Celebi, a provider of airport ground handling in India, has launched a legal challenge to New Delhi's decision to overturn its security clearance, arguing in a court filing that "vague" national security concerns were cited without reasoning.

India revoked the security clearance of Celebi Airport Services India, a unit of Turkey's Celebi , with immediate effect, citing national security concerns, the country's civil aviation ministry said in an order on Thursday.

What began as public calls to boycott travel to Turkey has now escalated into a broader rupture, with India severing links with Turkish businesses and universities. The diplomatic chill stems from Turkey's recent vocal support for Pakistan during the recent India-Pakistan hostilities.