MphasiS has been a steady performer on the operational front since the last two years. : Takeover by the US-based private equity firm Blackstone and a sharp turnaround in HP/DXC channel, which constitutes nearly 30 per cent of its business, have changed the fortunes of the midcap IT company MphasiS, and how! The Bengaluru-based IT services firm got a new lease of life when Blackstone acquired a controlling 60.5 per cent stake in the company from Hewlett-Packard Enterprise (HPE) in September 2016.