NEW DELHI--India's Ministry of Defense has asked for a government investigation into whether Rolls-Royce Holdings PLC illegally used outside advisers to get contracts in India, in the latest probe into the U.K. engine maker's global operations.

State-run Hindustan Aeronautics Ltd.--which distributes and services the Rolls-Royce turbines in India--was informed by Rolls-Royce in December that it used an outside adviser to help it win contracts between 2007 and 2011. It told the defense ministry, which has now decided to call for an investigation, said a defense ministry official who asked not to be named.

To discourage corruption, using middlemen or advisers to get government deals is banned under Indian law.

The ministry "took the call to ask the Central Bureau of Investigation to investigate the matter," said the defense ministry official referring to India's top federal investigation agency.

A Rolls-Royce spokesman said the company would cooperate with any investigation.

"We will cooperate fully with the regulatory authorities and have repeatedly made clear that we will not tolerate misconduct of any sort," he said.

While the allegedly illegal contractors were used to bag orders for industrial gas turbines for generating power, the defense ministry has asked that the investigation include Rolls-Royce's military contracts in India as well, the ministry official said.

In India Rolls-Royce has also received contracts to supply Hawk advanced jet trainers of BAE Systems PLC that are fitted with Rolls-Royce's Adour engines. The Indian Air Force's Jaguar fighter jets also have Rolls-Royce engines.

India has been coming down heavily on any company allegedly connected to corruption in recent years.

In January it scrapped a EUR556 million helicopter contract with AgustaWestland--the Anglo-Italian helicopter division of Finmeccanica SpA--after accusations the company paid bribes to Indian officials to obtain a helicopter deal. Both AgustaWestland and Finmeccanica have denied any wrongdoing.

In March 2012, India's defense ministry barred six companies, including Rheinmetall Air Defence and Singapore Technologies Engineering Ltd., from doing any business with state-run Ordnance Factory Board for 10 years for alleged bribery. Rhinemetall and Singapore Technologies denied the charges.

It isn't clear whether the Indian investigation is linked to a probe by the U.K.'s Serious Fraud Office of a leading U.K.-based India-born financier, Sudhir Choudhrie, and his son Bhanu in connection with alleged bribery and corruption at Rolls-Royce.

Write to Santanu Choudhury at santanu.choudhury@wsj.com

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