What present Indian District in the State of Assam is Areca Nut a prominent business?
Tangla: Tangla is a town and a town area committee in earlier Darrang district and present Udalguri district in the Indian state of Assam. Tangla:  It was a prominent business place Jute, Beetle Nut, Rice etc. and a host of small scale industries and centre of culture in erstwhile Darrang district. Areca nut:  This seed is commonly referred to as betel nut so it is easily confused with betel (Piper betle) leaves that are often used to wrap it (paan).
Udalguri district