"Issue LR to a competent authority in United Kingdom to examine facts and circumstances of the case," special judge P R Bhavke said in his order.
The ED had moved the special court recently seeking issuance of LR to secure details about Mallya's assets.
An ED official said, "We want details of the assets possessed by Mallya and hence we prayed to the court to issue LR."
ED wanted Mallya to join the investigation "in person" in connection with probe under the PMLA, and in cases related to a Rs 900 crore loan from IDBI Bank. The anti-money laundering probe agency said it had exhausted other legal remedies like seeking Interpol arrest warrant and getting his passport revoked.
Mallya, whose defunct Kingfisher Airlines owes more than Rs 9,000 crore to various banks, had left India on March 2 last year.
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