An ISI Certificate is an official approval granted by the Bureau of Indian Standards that allows manufacturers to use the ISI Mark on their products. It confirms that the product conforms to the applicable Indian Standard (IS) and meets safety, quality, and performance requirements.
https://bis-certifications.com..../a-guide-to-bis-cert

A BIS Certificate is an official approval issued by the Bureau of Indian Standards that confirms a product complies with Indian Standards (IS). It assures consumers that the product is safe, reliable, and of good quality.https://bis-certifications.com..../what-is-bis-certifi

The BIS License for Foreign Manufacturer is an official approval issued by the Bureau of Indian Standards (BIS) that allows overseas manufacturers to sell their products in the Indian market.
https://bis-certifications.com..../a-guide-to-bis-cert

ISI Mark Certificate & License | ISI Mark Certification Guide | #isi Mark

BIS License for Foreign Manufacturer | BIS Certification | #bis License for Foreign Manufacturer