ISI Registration is a certification scheme that allows manufacturers to use the ISI mark on their products after meeting specific quality standards. The ISI mark indicates that the product complies with Indian Standard specifications and has passed rigorous testing and inspection. This certification is mandatory for several products such as electrical appliances, cement, steel, and more. Without ISI certification, manufacturers cannot legally sell certain regulated products in India. https://bis-certifications.com/a-guide-to-bis-certification-indian-bis