Public interest litigation is an effective tool for addressing the issues of the disadvantaged sections of society, which offers a ladder to justice. The Supreme Court of India has provided to all individuals an easier access to the law and introduced in their work a broad perspective of public interest. It is an institutional initiative towards the welfare of the needy class of the society. In Vishaka v. State of Rajasthan(AIR 1997 SC 3011) Supreme Court has laid down guidelines for preventing sexual harassment of working women in place of their work, which developed to the protection of women against sexual harassment at workplace Bill 2007 and later turned to the sexual harassment of women at workplace (prevention, prohibition and redressal Act) in 2013.This article will describe, with reference to the Indian experience that PIL has achieved its objectives with the case of Vishaka a landmark judgment that has given new light to all working women in India and the paper shows PIL as a social reformation for seeking justice to fight against the social evils of common man. Like the two sides of the coin, PIL also has some other side showing its darker side due to its improper functioning is also reflected here.