(Adds Stada, Cameco ; Updates PSA Group)
March 6 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2100 GMT on Monday:
** Two pairs of private equity groups are considering bids for Stada STAGn.DE that would value the German generic drugmaker at up to 4.8 billion euros ($5.1 billion) including debt, people familiar with the matter told Reuters on Monday. Tech Mahindra Ltd TEML.NS , India's fourth-biggest software services exporter, will buy U.S.-based healthcare IT consulting firm CJS Solutions Group for an enterprise value of $110 million. Tata Steel Ltd TISC.NS is still in talks with Germany's ThyssenKrupp AG TKAG.DE about a potential merger of their European steel assets, the Indian company said. Israel-based Advanced Vision Technology Ltd AVTE.DE , which develops automatic print inspection systems, said it has agreed to be acquired by Danaher (NYSE:DHR) Corp's DHR.N product identification platform for $100 million. France's PSA Group PEUP.PA plans to buy Opel from General Motors (NYSE:GM) GM.N in a deal valuing the business at 2.2 billion euros ($2.3 billion), creating a new European car company to challenge market leader Volkswagen VOWG_p.DE . Austrian energy group OMV OMVV.VI has agreed to buy about a quarter in one of Russia's largest gas fields for 1.75 billion euros ($1.85 billion), a major expansion push that gives previous owner Uniper UN01.DE a badly needed cash injection. Abu Dhabi investment fund Mubadala Development Co MUDEV.UL sold nearly a third of its stake in Advanced Micro Devices AMD.O , booking a tiny gain on its investments in the micro chip maker. Investment managers Standard Life SL.L and Aberdeen ADN.L agreed an 11 billion pound ($13.5 billion) merger that should save 200 million pounds a year in costs, pressuring rivals to follow suit as industry margins sag. Austrian energy group OMV OMVV.VI said on Friday it agreed to sell its Turkish fuel supply and distribution unit Petrol Ofisi to Vitol Investment Partnership, managed by the Swiss-based commodities firm Vitol VITOLV.UL , for 1.37 billion euros ($1.45 billion). CSX Corp CSX.O is nearing a deal with one of its largest investors, activist hedge fund Mantle Ridge LP, to sign up veteran railroad executive Hunter Harrison as the U.S. railroad company's CEO, people familiar with the matter said on Friday. Canada's Cameco Corp CCO.TO , the world's second-biggest uranium producer, is exploring the sale of its U.S. production facilities, its chief executive said on Monday, as a six-year slump in the industry drags on.