Tea production in Bangladesh tea began in the Mulnicherra Estate in Sylhet in 1857. The Surma River Valley in the Sylhet region emerged as the centre of tea cultivation in Eastern Bengal. Plantations also flourished in Lower Tippera (modern Comilla) and Panchagarh which in North Bengal.Panchagarh is the only third tea zone in Bangladesh and most demanded teas cultivated here. Tea was a major export of British Bengal. The Assam Bengal Railway served as a lifeline for the industry, transporting tea from growers in the Surma and Brahmaputra Valleys to exporters in the Port of Chittagong. The Chittagong Tea Auction was established in 1949
Nilgiri tea in South India. However, plantations only account for around 30% of tea production in Nilgiri District. The vast majority of production is undertaken by small growers, who typically own less than one hectare each. The majority of Nilgiri tea small growers are the Badagas, a local community of agriculturists. Tea plantations in Nilgiri District (as in other growing districts of India) typically own and operate their own processing factories. Small growers sell their tea as green leaf to "bought leaf factories", which are independently owned. (Although in recent years, some plantation factories have started buying green leaf from small growers)