The Indian Constitution envisions social justice as a foundational principle aimed at securing equality, dignity, and inclusive development for all citizens. Constitutional law plays a pivotal role in translating this vision into reality through enforceable fundamental rights, directive principles of state policy, and an independent judiciary. This paper examines the relationship between constitutional law and social justice in India, with particular emphasis on provisions addressing equality, affirmative action, protection of marginalized communities, and socio-economic rights. It analyses judicial interpretations and landmark judgments that have expanded the scope of social justice, highlighting the dynamic role of the Supreme Court and High Courts. The study also explores contemporary challenges such as economic inequality, caste-based discrimination, gender injustice, and access to justice. By assessing both constitutional ideals and practical implementation, the paper underscores the continuing relevance of constitutional law as an instrument for achieving social justice in a pluralistic democracy like India.