A Geographical Indication (GI) tag is a sign used on products that have a specific geographical origin and possess qualities or a reputation that are due to that origin. It is a type of intellectual property right that gives the right to only those registered users to use the product name, and prevents others from using the product name that does not meet the standards prescribed. The GI tag ensures that none other than those registered as authorized users (or at least those residing inside the geographic territory) are allowed to use the popular product name.

In India, the Geographical Indications of Goods (Registration and Protection) Act, 1999 provides registration and better protection of geographical indications relating to goods. The Geographical Indications Registry is set up for the administration of the Act, and it is situated in Chennai. Darjeeling tea became the first Indian product to get a GI tag in 2004-2005. As of September 2019, there exist 370 Geographical Indications of India.

GI tags are generally registered on products produced by rural, marginal, and indigenous communities over generations that have garnered massive reputation at the international and national level due to some of its unique qualities. The types of products that GI tags are used on include agriculture, foodstuff, handicraft, manufactured, and textile. Some examples of products that have received GI tags in India include Darjeeling tea, Kashmir saffron, Manipuri black rice, and Dindigul locks.

In summary, a GI tag is a sign used on products that have a specific geographical origin and possess qualities or a reputation that are due to that origin. In India, the Geographical Indications of Goods (Registration and Protection) Act, 1999 provides registration and better protection of geographical indications relating to goods. Darjeeling tea became the first Indian product to get a GI tag in 2004-2005, and as of September 2019, there exist 370 Geographical Indications of India.