Whether the agricultural research succeeds or fails as a catalyst to any nation's development depends largely on how well researchers and extension personnel communicate and cooperate with each other. In this regard, close and reciprocal interaction among research, extension and farmers is mandatory which could lead to design and delivery of appropriate technology. The status of linkages between research and extension, extension and farmers and research and farmers has been highlighted and also the indicators which could measure the linkage strength among the above actors in the development are reviewed.
