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Sumitomo Mitsui Trust Bank buys stake in Indian private equity firm

Reported by Mezha
Oct 29, 2026· 2 min read
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Key Takeaways
  • • Sumitomo Mitsui Trust Bank has taken a minority stake in India's One Planet Partners and will anchor the firm's first fund, according to Bloomberg.
  • • One Planet Partners expects to deploy about 30 billion rupees (approximately $315 million) over the next five years.
  • • Target sectors include energy transition, mobility and manufacturing, per the fund's founding partners.
  • • The deal reflects broader Japanese institutional interest in Indian companies across financial services, manufacturing and real estate.
  • • Major Japanese banks, including Sumitomo Mitsui Financial Group and Mizuho Financial Group, have acquired stakes in Indian firms over the past year.
Summary
Sumitomo Mitsui Trust Bank has taken a minority stake in One Planet Partners, an Indian private equity firm, and will serve as anchor investor in the firm's first fund, according to Bloomberg. The fund's founding partners said in an interview that One Planet Partners expects to deploy about 30 billion rupees, or roughly $315 million, over the next five years.

The fund's planned investments span energy transition, mobility and manufacturing. The transaction underscores the growing appetite among Japanese institutional investors for Indian assets. Bloomberg reports that the interest extends beyond private equity to financial services, manufacturing and real estate.

The investment also fits a wider pattern. Over the past year, major Japanese banks including Sumitomo Mitsui Financial Group and Mizuho Financial Group have acquired stakes in Indian companies as part of what the source describes as an unprecedented investment push into the country. For institutional allocators, the deal signals that Japanese capital is increasingly positioning itself through local India-focused managers rather than solely through direct corporate stakes.

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Sources

1 outlet

AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Mezha Sumitomo Mitsui Trust Bank buys stake in Indian private equity firm