Multiple choice general knowledge TCS e-Serve was Formerly known as ... Cyberweb Global Services Accent smart-source Citigroup Global Services Pioneer eService Reveal answer Fill a bubble to check yourself C Correct answer Explanation TCS e-Serve was formerly known as Citigroup Global Services. TCS acquired this BPO arm from Citigroup in 2008 for $505 million, making it one of the largest acquisitions in Indian IT history at that time.