Banarasi paan

Betel nut chewing, also called betel quid chewing or areca nut chewing, is a practice in which areca nuts are chewed together with slaked lime and betel leaves for their stimulant and narcotic effects, the primary psychoactive compound being arecoline. The practice is widespread in Southeast Asia, Micronesia, Island Melanesia, and South Asia. It is also found among both Han Chinese immigrants and indigenous peoples of Taiwan, Madagascar, and parts of southern China. It was introduced to the Caribbean in colonial times. The preparation combining the areca nut, slaked lime, and betel (Piper betle) leaves is known as a betel quid (also called paan or pan in South Asia), but the exact composition of the mixture varies geographically. It can sometimes include other substances for flavoring and to freshen the breath, like coconut, dates, sugar, menthol, saffron, cloves, aniseed, cardamom, and many others. The areca nut can be replaced with tobacco or the two chewed together, and the betel leaves can be excluded. In West Papua, the leaf may be replaced with stem and inflorescence of the Piper betle plant. The preparation is not swallowed, but is spat out after chewing. Chewing results in permanent red stains on the teeth after prolonged use. The spit from chewing betel nuts, which also results in red stains, is often regarded as unhygienic and an eyesore in public facilities in certain countries.

Source: Wikipedia