Social and environmentally responsible investing is a recent and growing trend in India, in which investors look for twin objectives, financial returns, and reduced socio-environmental impact. Yet, selecting an Indian stock having both these properties is not easy. To help investors track companies that follow energy-efficient and eco-friendly practices, the Bombay Stock Exchange (BSE) has developed indices with environmentally responsible stocks in collaboration with some other organizations. This study focuses on determining the effectiveness of investing in environmentally responsible stock by analysing the performance of three BSE indices; the S&P BSE Greenex, S&P BSE ESG-100, and S&P BSE Carbonex indices. The study intends to reduce apprehensions in the minds of investors who intend to invest in environmentally responsible stocks as the findings indicate that the companies listed in sustainable indices performed as well or better than the market performance.