This document summarizes a case from the Competition Commission of Pakistan (CCP) against five companies for bid rigging. The CCP found evidence the companies colluded on bids for a public sector tender. After hearings, the CCP determined the companies violated antitrust law. It rejected defenses that the relevant market wasn't defined and that bid rigging isn't a per se violation. The CCP fined each company PKR 2 million for collusive bidding, finding it a serious infringement.