Crystalline Silicon Terrestrial Photovoltaic (PV) module (Si wafer-based) BIS CRS certification guarantees compliance with Indian Standard IS 14286:2010 and related criteria. PV modules must be sold by producers in India. Product testing at a BIS-recognized facility, documentation submission, and BIS verification comprise the process. Manufacturers both domestic and international have to register online; foreign manufacturers need an Authorized Indian Representative (AIR). Manufacturers accredited under the BIS Standard Mark can guarantee performance as per Indian standards, safety, and dependability of products once approved. Frequent audits and renewals help to keep certification validity.