The Bureau of Indian Standards (BIS) is a national standards body in India that operates under the Ministry of Consumer Affairs, Food, and Public Distribution. It plays a vital role in ensuring the quality and safety of products and services. Its main function is to formulates and promote standards to ensure the quality and reliability of products, covering a wide range of industries and sectors. It provides certification mark, known as the ISI mark, to products that meet the specified standards. Besides it also administers the hallmarking scheme for precious metals, ensuring the purity and authenticity of gold, silver, and platinum jewellery.