Indian tea culture thriving in Assam, when a native from the province present, seeing some tea said, 'We have the plant growing wild in our jungles.'" It is then documented that the Assamese nobleman, Maniram Dutta Barua, (also known as Maniram Dewan) showed British surveyors existing fields used for tea cultivation and wild tea plants growing in the Assamese jungle. In the early 1820s, the British East India Company began large-scale production of tea in Assam, India, of a tea variety traditionally brewed by the Singpho tribe. In 1826, the British East India Company took over the region from the Ahom kings through
Tea production in Sri Lanka biological control (a parasitic wasp, "Macrosentus homonae") to suppress the Tea Tortrix caterpillar, which had threatened the tea crop. In 1941 the first Ceylonese tea broking house, M/s Pieris & Abeywardena, was established, and in 1944 the Ceylon Estate Employers' Federation was founded. On October 1, 1951, an export duty on tea was introduced and in 1955 the first clonal tea fields began cultivation. In 1958, the State Plantations Corporation was established, and on June 1, 1959, Ad Valorem Tax was introduced for teas sold at the Colombo auctions. By the 1960s, Sri Lanka's total tea production and exports exceeded