Mobilizing investments by institutional investors, foreign and domestic, is a requisite for India to meet its clean energy targets. India needs an additional ~450 billion of capital by 2040 to reach ~480GW of renewable energy capacity. Foreign institutional investors with USD 70 trillion and domestic institutional investors with USD 560 billion of assets under management may prove crucial in fulfilling the financing requirements of this sector. This paper proposes a business case for institutional investors to invest into the renewable energy sector in India.