The matter is already being looked into by several agencies, including markets watchdog Sebi and the stock exchanges which act as front-end regulators.
Taking forward its probe into the entire matter, the National Stock Exchange had asked United Spirits Ltd (USL) to provide a detailed report on its inquiry for "the public dissemination purpose".
Besides, the company was also asked to clarify on any submissions made by it to the Central Government or other authorities in connection with this matter.
"However, we are not in a position to make the Internal Report available to the NSE for onwards public dissemination," the company said, while citing various reasons.
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A major boardroom battle has broken out at USL after its board asked Vijay Mallya to quit as Chairman and Director on the basis of this report, which indicated alleged fund diversion to various UB group firms between 2010-2013.
Mallya has refused to quit, while majority owner Diageo is yet to take a public position on the entire matter.
"A public disclosure of the Internal Report would provide the company's competitors and other third parties with vested interests an access to such sensitive commercial and operational information of the company, and thereby provide an opportunity for such parties to use such information in a manner that is prejudicial to the interests of the Company and its shareholders," it added.
USL further said that the inquiry suggested that the manner in which certain transactions were conducted, prima facie, indicates various improprieties and legal violations.