Deals of the day-Mergers and acquisitions

(Adds Michelin ; Updates GKN, UltraTech, Klepierre , AT&T)

March 19 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Monday:

** Greece's National Bank (NBG) NBGr.AT said it is considering other options on its Romanian subsidiary Banca Romaneasca after Romania's central bank rejected a deal to sell the unit to Hungary's OTP Bank OTPB.BU . Sherborne Investors SIGC.L , led by activist investor Edward Bramson, has taken control of a 5 percent stake in Barclays BARC.L , cheering other shareholders who hope the move could herald a shake-up of the British bank. South Africa's competition authority has approved private hospital firm Netcare 's NTCJ.J acquisition of Akeso Clinics after the company agreed to sell two hospitals and maintain a range of pricing levels. Oil giant Saudi Aramco is looking to buy a majority stake in a proposed refinery and petrochemical complex valued at 3 trillion rupees ($46.10 billion) in the western Indian state of Maharashtra, local daily Economic Times reported, citing people familiar with the matter. Edizione, the holding company of Italian entrepreneur family Benetton, is considering increasing its stake in insurer Generali GASI.MI from its current level of about 2 percent, two sources close to the matter said. French tire maker Michelin MICP.PA plans to buy British engineering company Fenner FENR.L for 1.2 billion pounds ($1.7 billion) so that it can serve mining companies better and benefit from an industry recovery. India's top cement maker UltraTech Cement Ltd ULTC.NS offered $1.1 billion to buy Binani Cement Ltd days after a rival bid in what could be a test case for the country's fledgling bankruptcy process. Financial services provider Fidelity National Financial Inc FNF.N said it would buy insurer Stewart Information Services Corp STC.N in a $1.2 billion deal to strengthen its residential and commercial title insurance business. KLA-Tencor Corp KLAC.O said it would buy fellow semiconductor equipment maker Orbotech Ltd ORBK.O in a $3.4 billion deal, giving it access to the fast-growing market for printed circuit boards and flat panel displays. European private equity firm Novalpina Capital said on Monday it planned to make a cash bid for Estonia-based casino and betting operator Olympic Entertainment Group (OEG) OEG1T.TL in a deal valuing the company at around 288 million euros. U.S. defense contractor CACI International Inc CACI.N said on Sunday it had offered to merge with larger peer CSRA Inc CSRA.N , seeking to disrupt the latter's $6.8 billion acquisition by General Dynamics Corp (NYSE: GD ) GD.N . French shopping centres operator Klepierre LOIM.PA has made a 4.9 billion pound ($6.9 billion) bid for Hammerson HMSO.L , seeking to strike before the British company completes a major takeover of its own. The battle for British engineering company GKN GKN.L intensified, with both Melrose MRON.L and Dana DAN.N sweetening their proposals before a March 29 takeover deadline. AT&T Inc (NYSE: T ) T.N sought to persuade a judge on Monday to throw out evidence the government seeks to use in a trial that begins this week to show that the company's $85 billion acquisition of Time Warner Inc (NYSE: TWX ) TWX.N would harm consumers and competitors.