This document contains the Supreme Court of India's judgement in the case of Hira Singh vs Union of India, dated 22 April 2020. The judgement addresses crucial questions regarding the Narcotic Drugs and Psychotropic Substances (NDPS) Act, specifically concerning how to determine the quantity of drugs in mixtures for sentencing purposes. It clarifies whether only the pure drug content or the total weight of the mixture, including neutral substances, should be considered. This judgement is vital for legal practitioners, law students, and anyone involved in drug-related legal matters.