Canada Pension Plan Investment Board (CPPIB) will acquire the stake from the Asian Development Bank (ADB), ReNew Power said in a statement.
CPPIB would become the third largest stakeholder in ReNew Power, where Goldman Sachs holds the majority stake.
It had previously agreed to invest about USD 200 million through compulsorily convertible preference shares. They were to be converted into equity whenever ReNew Power goes for an initial public offering.
"This transaction aligns well with our overall power and renewables strategy, further diversifying the CPP Fund," said Scott Lawrence, Managing Director, Head of Fundamental Equities, CPPIB.
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"We look forward to a long-term partnership with ReNew Power's excellent management team which has a proven track record as a reliable, experienced developer and operator with an impressive portfolio built up over the past six years," he said.
"We are committed to transforming our country's energy portfolio and CPPIB's investment in the company will further strengthen our resolve," he said. "We will continue to focus on developing and investing in high-quality projects."
Lawrence said CPPIB will continue to seek opportunities to expand its power and renewables portfolio as demand grows worldwide.
As on September 30, 2017, CPPIB's investments in India totalled 6.1 billion Canadian dollar.
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