ESG stands for Environmental, Social, and Governance, and it represents a set of criteria used by investors to evaluate the sustainability and societal impact of companies in which they invest. ESG rankings or ratings are assessments that evaluate companies; based on their activities related to ESG performance. Of these three, activities related to social performance include Corporate Social Responsibility (CSR) as a valuable tool for ESG ranking by demonstrating a company's commitment to sustainable and responsible business practices, fostering stakeholder engagement and trust, enhancing transparency and accountability, and creating long-term value for shareholders and society. Integrating CSR considerations into ESG evaluation provides a comprehensive assessment of a company's performance. According to the ESG ranking by CRISIL in the year 2022, HDFC bank is having a position of leader in the banking industry. This paper takes a closer look at how HDFC Bank's investments in CSR activities impact its share price, examining both the short-term reactions and long-term trends.