Sustainable Energy Infra Trust is an India-based infrastructure investment trust (InvIT) dedicated to owning, operating, and managing a diversified portfolio of utility-scale renewable energy infrastructure assets. Established in 2023 and headquartered in Mumbai, Maharashtra, India, the trust is co-sponsored by Mahindra Susten Private Limited, the renewable energy platform of the Mahindra Group, and 2726522 Ontario Limited, an investment subsidiary of the Ontario Teachers Pension Plan Board, with fund operations administered by Sustainable Energy Infra Investment Manager Private Limited and trusteeship overseen by Axis Trustee Services Limited. Sustainable Energy Infra Trust operates through multiple Special Purpose Vehicles holding operational solar power projects located across key resource-rich states including Rajasthan, Gujarat, Madhya Pradesh, Andhra Pradesh, and Telangana. The trust provides a structured portfolio of clean energy solutions and infrastructure services comprising utility-scale solar photovoltaic electricity generation; long-term wholesale power supply contracted under multi-decade Power Purchase Agreements primarily with central government counterparties such as the Solar Energy Corporation of India and NTPC Limited, as well as state electricity distribution utilities; renewable energy infrastructure lifecycle management and plant maintenance; grid interconnect and high-voltage transmission operational support; and capital aggregation and yield-generating distribution frameworks for institutional and retail infrastructure investors. In recent corporate developments, Sustainable Energy Infra Trust completed its public listing on the National Stock Exchange of India and BSE in early 2024 following an institutional placement and initial portfolio aggregation of over 1.13 GW of operational solar capacity. The trust further secured top-tier AAA credit ratings from major domestic credit rating agencies including CRISIL and India Ratings for its long-term credit facilities and non-convertible debentures, executed strategic debt refinancing programs to optimize capital costs, and integrated comprehensive operations, maintenance, and digital asset monitoring mandates with Mahindra Teqo Private Limited while establishing pipeline evaluation mechanisms for future renewable project acquisitions from its sponsors.