PremjiInvest has invested close to $20 million in the hospital chain in the last three years.
The acquiring of additional stake by PremjiInvest and another investor, Milestone Capital, led to the exit of investor IDFC Private Equity.
Evolvence is another fund which has invested in the hospital chain.
According to investment bankers close to the deal, IDFC Private Equity is understood to have exited the hospital chain with twice the returns on its investment of around Rs 50 crore (Rs 500 million), invested nearly five years ago.
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