Tech Mahindra Ltd. was named the successful bidder for a one-third stake in Satyam Computer Services, effectively gaining control and likely catapulting it into the heavyweight league of software-services businesses. Venturbay Consultants Pvt. Ltd., a unit of Tech Mahindra, will pay 17.6 billion rupees ($351 million) for 302.76 million Satyam. The 58-rupee-a-share-offer is a 23% premium to Satyam's closing price of April 9. The decision ends a prolonged search to select a strategic investor for Satyam. It comes three months after former Chairman B. Ramalinga Raju unveiled the bombshell that prompted India's largest corporate-account fraud inquiry. […]