The two components of food security system in India are: (i) Buffer stock: Buffer stock is the stock of foodgrains (wheat and rice) procured by the government through Food Corporation of India (FCI). Buffer stock is used to distribute foodgrains in the deficit areas and among the poorer strata of society at a price lower than the market price. This stock is also used during any natural calamity such as drought or earthquake. (ii) Public distribution system: The food procured by the FCI is distributed through government regulated ration shops among the poorer section of the society. This is called the Public Distribution System.