BIS market surveillance is the enforcement arm of India's mandatory certification system. Understanding how market surveillance works — and what happens when a product fails — is essential for every manufacturer, importer, and brand owner selling products in India.
BIS conducts regular and systematic sampling of products from markets (retail outlets, e-commerce warehouses, import shipments) and tests them against the applicable Indian Standard. This is done to verify that products bearing BIS certification marks (ISI mark, CRS R-number) actually comply with the standard they claim.
BIS officers or their authorized agencies purchase products from open market, e-commerce platforms, or import shipments. They are not required to disclose they are BIS officers at time of purchase.
Purchased samples are tested at BIS laboratories or authorized testing laboratories. Testing is conducted against the applicable standard.
If the tested sample fails, BIS issues a Show Cause Notice to the manufacturer/registrant explaining the test findings and requesting a response.
BIS works with Customs to identify and hold non-compliant imported products at ports of entry. Products without valid BIS certification can be denied customs clearance.
BIS coordinates with major e-commerce platforms (Amazon India, Flipkart) to delist products without valid BIS certifications. Product listings without valid R-numbers or without ISI mark declarations are routinely identified and delisted.
Prevention is far better than response. House of Testing offers pre-market compliance verification testing to confirm your products will pass BIS surveillance before problems occur.