Guwahati: A team from the Guwahati Customs division confiscated 11.56 kg of a solid waxy substance on Sunday which was combustible and thought to be Ambergris commonly known as whale vomit, officials said.

An official has calculated that the suspected Ambergris is worth Rs. 91 crore on the world market.

The Guwahati Customs Division’s Divisional Preventive Force made the seizures.

Ambergris is produced in the digestive system of sperm whales and is grey to blackish in colour. It is found usually on the sea coasts of Maldives, China, Japan, India, South Africa, Brazil, Madagascar, Australia, and New Zealand, according to a Directorate of Revenue Intelligence (DRI) report.

Ambrein extracted from Ambergris is used to increase the fragrance of perfumes.

In India, both the sale and possession of ambergris are illegal under Schedule I of the Wild Life (Protection) Act, 1972.