MUMBAI, July 2 (Reuters) - Kotak Mahindra International Limited said on Tuesday that U.S. short-seller Hindenburg Research has never been an investor in the K-India Opportunities Fund.

Kotak was responding to allegations that Hindenburg colluded with its client Kingdon Capital Management and used a Kotak group offshore fund to short Adani group shares last year.

"The Fund was never aware that Hindenburg was a partner of any of its investors," Kotak said in a media statement.

It added that investments were made in the fund by its investors and not on behalf of any other person.

Kotak further said that it is cooperating with India markets regulator. (Reporting by Jayshree P Upadhyay; Editing by Savio D'Souza)