Tocklai Tea Research Institute

The Tocklai Tea Research Institute (formerly Tocklai Experimental Station) of Tea Research Association (TRA) is an Indian prime tea research institute for the development of tea and its agricultural practices located in Jorhat, Assam, India. Founded in 1911, it is the world's largest and oldest tea research institute.

Tocklai Tea Research Institute carried out research on all aspects of tea cultivation and processing for improving overall productivity and quality. After the formation of Tea Research Association in 1964 with the centre at Tocklai, has also further expanded the horizon of tea research. Its regional R&D centre is at Nagrakata, West Bengal.