In the article titled, “The Disjunction Between Custom and Formal Law: Erosion of Matrilineal Succession in India,” the authors investigate the clash between traditional customs and formal law, specifically focusing on the erosion of matrilineal succession in India. Tribal communities, often isolated and self-sustaining, maintain unique cultural practices like matrilineal succession, where ancestral resources pass to female descendants, and identity is inherited through the mother. Focusing on the Khasi and Garo societies in Meghalaya, the paper argues that the limited power women gain through matriliny is undermined by the Indian courts’ colonial interpretation of customary laws, requiring them to be ‘ancient, certain, and reasonable.’ This interpretation, along with interactions with formal legal structures like land reforms and codified personal laws, further weakens these tribal customs and imposes external gender norms.