Deals of the day-Mergers and acquisitions

May 9 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1330 GMT on Friday:

Delta Air Lines and Korean Air Lines <003490.KS> will acquire an aggregate 25% stake in Canada's WestJet Airlines for $550 million from private equity firm Onex Corp , the U.S. carrier said.

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Japanese lender Sumitomo Mitsui Banking Corporation (SMBC) has signed a definitive agreement to take a 20% stake in Indian private lender Yes Bank , a deal that marks the largest cross-border merger and acquisition deal in India's financial sector.

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British property company LondonMetric LMPL.L is to buy Urban Logistics SHED.L in a 698.9 million pound ($924.99 million) cash and stock deal, creating one of the country's largest property investment groups by market capitalisation. nL4N3RH0KU

U.S. investment firm Bain Capital is seeking to sell the China business of data centre operator WinTriX DC Group, in a deal that could value the business at over $4 billion, two people with knowledge of the situation said. nL4N3RG0XD

U.S. real estate firm CoStar CSGP.O will acquire Domain DHG.AX for A$3 billion ($1.92 billion) including debt, the Australian property listings platform said, in a bid to create a well-capitalised rival to News Corp's REA. nL4N3RG3B4