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Tea Research Association popularly known as TRA Tocklai is the oldest and largest tea research institute globally which looks after the research and development needs of the Indian tea industry. It carries out and promotes research on tea with the principal objective of improving overall productivity and quality. It is a pioneer in the research and development of tea and an innovator in providing extension services to the tea industry. Research on all aspects of tea cultivation is carried out at Tocklai Tea Research Institute, Jorhat, Assam and at North Bengal R&D Centre, Nagrakata, West Bengal. The ten advisory branches of TRA look after 1100 large tea estates and more than 2,00,000 small tea growers.

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