Funding Round - Mu Sigma - 2013-02-05 - Overview | Crunchbase
https://www.crunchbase.com/funding_round/mu-sigma-undisclosed--01ae12cc
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Mu Sigma CEO Ambiga Subramanian, General Atlantic in bid to sell stake
Reghu Balakrishnan
https://www.livemint.com/Companies/ErDHz77bhDoG2X3ekvJarM/Mu-Sigma-CEO-Ambiga-Subramanian-General-Atlantic-in-bid-to.html
August 8, 2016