Nepali tea teas like green tea, oolong tea, white tea and hand rolled tea fall under the category of orthodox tea. In Nepal, orthodox tea is produced and processed in the mountainous regions of Nepal at an altitude ranging from 3,000 – 7,000 feet above the sea level. There are six major districts, primarily in the eastern regions of Nepal that are known for producing quality orthodox tea, which are Ilam, Panchthar, Dhankuta, Terhathum, Sindhulpalchok and Kaski. Orthodox tea in Nepal is characterized by four flushes:- Crush, tear, curl (CTC) tea is a method of processing Assam variety "(Camellia sinensis" var. "assamica)",
Camellia sinensis Robert Sweet shifted all formerly "Thea" species to the genus "Camellia" in 1818. The name "sinensis" means "from China" in Latin. Four varieties of "Camellia sinensis" are recognized. Of these, "C. sinensis" var. "sinensis" and "C. sinensis" var. "assamica" (JW Masters) Kitamura are most commonly used for tea, and "C. sinensis" var. "pubilimba" Hung T. Chang and "C. sinensis" var. "dehungensis" (Hung T. Chang & BH Chen) TL Ming are sometimes used locally. There are hundreds, if not thousands of cultivars of "C. sinensis." Some Japanese cultivars include: "Camellia sinensis" is native to East Asia, the Indian Subcontinent and Southeast