NEW DELHI (Reuters) -Russia-backed Indian refiner Nayara Energy Monday said it has started legal proceedings against Microsoft following the abrupt and unilateral suspension of critical services by the U.

Russia-backed Indian refiner Nayara Energy, recently sanctioned by the European Union, has turned to domestic firm Rediff.com after the U.S. tech giant Microsoft suspended IT services, three sources familiar with the matter said.

Nayara Energy said Microsoft was restricting access to the oil company’s own data, proprietary tools, and products despite these being acquired under fully paid-up licenses