Section 377 of the Indian Penal Code (IPC) established in 1861 during British colonial rule made consensual same-sex relations, and other ‘unnatural’ sexual acts illegal that deeply affected the Indian LGBTQ+ community. This research explores the historical beginnings, legal development, and socio-cultural consequences of section 377 by offering a detailed understanding of how it has influenced attitudes concerning sex in the country. The research started by going into detail about how Section 377 came into play during colonial days reflecting the norms of morality taught by the British from the Victorian era. It also looks into the most important legal cases that had been ruled such as Naz Foundation Vs Delhi (2009), Suresh Kumar Koushal Vs Naz Foundation (2013), and Navtej Singh Johar V Union Of India, the three of which brought about the decriminalization of homosexual activity. To sum up, this study examines Section 377 IPC in-depth, depicting its historical context, legal transitions, and its permanent effect on Indian society, as well as showing its attributes. Thus, it also demands consistency in improving LGBTQ+ rights and promoting an open system that is just for everyone.