He alleged that eight companies owned by Yunus, and not by Grameen Bank, had obtained tax benefits in the name of the bank.
In his statement, Yunus said he did not breach any laws as chief executive of Grameen Bank and that all of his activities were approved by the bank's board.
"Grameen Bank was created by a special law. The board of directors holds absolute power under the law. Whatever Prof. Yunus did he did with the permission and consent of this powerful board," the statement said.
Supporters of Yunus, who won the Nobel along with Grameen Bank for pioneering microcredit as a means of lifting millions out of poverty, say the charges are politically motivated because of differences he has with the prime minister, who came to power in a landslide victory in 2008.