His resignation comes at a time when the company ventured in acquisitions. Bala has been one of the key players in driving this inorganic growth strategy.
Balakrishnan, head of the BPO, Finacle and India business units at Infosys, is widely seen as a contender for CEO after the incumbent S D Shibulal's term ends in 2015.
Bala gets Murthy's open backing but it's an open field in this long run-up to Shibulal's handing over.