The Essential Commodities Act ensures the availability of essential commodities like food, fuel and drugs. It gives the central government power to regulate production, supply and prices of essential goods. Originally, the act covered 70 items but now only 7 are listed - drugs, fertilizers, foodstuffs, cotton yarn, petroleum, jute and seeds. The act aims to prevent hoarding and black marketing. State governments enforce it and can confiscate excess stock and fine or imprison violators. The act has been amended over time to adjust the list of essential goods and strengthen enforcement powers.