In this Nov 9, 2015 photo, Naresh Goyal, chairman of Jet Airways India Ltd, speaks during a Boeing Co news conference on the second day of the 14th Dubai Air Show at Dubai World Central (DWC) in Dubai, United Arab Emirates. (PHOTO / BLOOMBERG)

An Indian court denied Naresh Goyal, founder of India’s once largest airline by market value, permission to fly overseas after the government told the court a US$2.6 billion fraud investigation involving Jet Airways India Ltd is underway.

Jet Airways owes at least US$1.1b to banks and is undergoing bankruptcy resolution after it defaulted on loans that were due by Dec 31

The Delhi High Court’s single-judge bench of Justice SK Kait expressed apprehension Goyal may not return like others facing allegations of fraud. “I won’t name but some people are sitting outside the country, and India is not able to bring them back,” Kait said. The court sought government’s written response and said it will hear the case again on Aug 23.

Jet Airways owes at least 73 billion rupees (US$1.1 billion) to banks and is undergoing bankruptcy resolution after it defaulted on loans that were due by Dec 31. The carrier is a casualty of cut-throat price war in India’s tough aviation market seven years after Vijay Mallya’s Kingfisher Airlines Ltd shut down.

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The government is trying to extradite Mallya from London. Mallya is among several fraud accused, including diamond tycoon Nirav Modi, who fled the country in recent years.

Goyal on May 25 was made to deboard a flight to Dubai and London at Mumbai airport after India’s Serious Fraud Investigation Office had issued a lookout notice for him. Goyal’s lawyer Maninder Singh said the lookout circular was illegal and curtailed his fundamental right to life and liberty. The founder of the airline needs to travel overseas to explore funding for the carrier, Singh told the court.

The government has opposed Goyal’s petition. “It is a serious investigation of 18,000 crore-rupee (US$2.6 billion) fraud. He must cooperate in the investigation,” the government’s lawyer Additional Solicitor General Maninder Acharya said. Goyal has been summoned by the investigator to depose on July 10.