The Company Law Board, CLB has stopped auction of Telenor-controlled joint venture Uninor. CLB said it was a complete breach of shareholding agreement by the Norwegian telecom giant with its minority partner Unitech.Uninor had on Ist August invited potential bidders to express interest by August 6 to buy the joint venture and said its majority owner, Norway's Telenor, was willing to pay Rs 4,190 crore for its 30 million customers and assets in case no other bidder turns up. The move was opposed by Unitech, who moved the CLB.The CLB said that the auction notice issued by majority held Uninor was under the grab of transparency is an attempt by Telenor to dissuade any prospective bidder from participating in the auction and to be bid in the auction itself .The CLB Chairman Justice D R Deshmukh further said that the auction notice did not even give sufficient time to the prospective bidder for mandatory due diligence. He further said Telenor was trying to avail a business opportunity for itself and not for the company by inviting the auction through Uninor.