One of Greater Cincinnati's largest public companies could be in line to get even bigger. Convergys Corp. is in talks to purchase India-based business process outsourcing firm Minacs Ltd. for $500 million, according to media reports. Livemint.com cites sources close to the negotiations who said the Cincinnati-based global customer-service management provider (NYSE: CVG) is hoping to purchase Minacs from private equity firms Capital Square Partners PTE Ltd. and CX Partners LLP. The firms originally...