The study examines the socio-economic betterment of fishermen community in Purulia district of West Bengal under the inclusion of Tribal Sub-Plan. The study collects the information for the assumed hypotheses and tests them to measure the level of improvement under the periphery of Tribal Sub-plan in compare to their traditional practices. On the basis of such results, the study will suggest some policy which will develop the existing situation in more suitable manner. Agriculture and pisciculture are main two pillars of the local economy of the district and people mainly derive their livelihood by exploiting the fishery resources in the water bodies of the district. The district is bestowed with large number of water bodies which are utilized for Pisciculture activities. This water bodies can be more effectively utilized for pisciculture activities which can really supplement the income of the rural poor to a considerable level. In this context, for the socio economic upliftmentof tribal people, Tribal Sub Plan (TSP) was formulated and adopted in different districts. From the study carried in the district of Purulia it clearly shows a positive impact upon the Tribal Farmers.