The BIS (Bureau of Indian Standards) license assures that products meet Indian Standards (IS). It is required for electrical appliances (IS 302), cement (IS 269), and packaged drinking water (IS 14543). The process entails determining the needed certification (ISI Mark, CRS, or FMCS), testing the product at a BIS-approved lab, and submitting online through the Manak Portal. Factory inspections may be necessary. Once accepted, a unique BIS number is assigned. Processing time ranges from 15 to 90 days, depending on the kind of certification. The license provides legal compliance, consumer protection, and commercial credibility. Fees vary according on product type.