Tea is widely cultivated all over the world. But, most of the production comes from China and India. There are different types of tea cultivated in India. The Darjeeling Tea and the Assam tea is the most famous of all the types cultivated in India. Tea plants generally require a cool climate and constant supply of water. That is why they are mainly cultivated on slopes of hills at high altitudes. The leaves are collected from the plants and are transferred to the processing units who process the tea leaves and make them ready to be distributed in the market.