The day when all organizations across the world operated only for financial gain is long past. Natural resource preservation and environmental protection are becoming increasingly important in all spheres of life today. Continuous research has being done worldwide to identify novel approaches for achieving sustainability. In order to safeguard the environment, mitigate the impacts of climate change, invest in renewable energy sources, increase the amount of green space, and support other sustainable development initiatives, financial aid is known as" green finance." This article examines the components of green financing, including green banking, green insurance, and green bonds. Additionally, it assesses the possibilities and difficulties for green finance with the aid of current literature and efforts to offer fresh information regarding Green Finance as a useful instrument of Sustainability in developing nations like India.