Mumbai, April 23 -- Nayara Energy Ltd, the Indian refiner backed by Russia's Rosneft, told a Delhi court that SAP India's decision to cut off software support has left its operations vulnerable to cyber threats and defies India's refusal to recognize unilateral sanctions.

On Thursday, Nayara's counsel Dayan Krishnan argued that SAP is using the European Union trade curbs to not provide its services to the energy firm despite contractual obligations in India. The company, which operates a refinery, claimed that being kept out of critical security updates and expert services prevents it from following government orders to strengthen infrastructure to withstand digital attacks.

The dispute serves as an instance for global tech vendors caug...