Payment service provider MasterCard Inc on Thursday said it will acquire European rival DataCash Group Plc for 520 million in an effort to expand its e-commerce business. Credit and debit-card processing network company MasterCard will buy DataCash at 360 pence a share,aggregating to 520 million,it said. E-commerce represents an important part of MasterCards growth strategy and this acquisition will allow us to provide new services to our acquiring customers,as well as drive increased e-commerce penetration in both existing and new markets, said MasterCard president and CEO Ajay Banga.