The present study is aimed at assessing the performance of purposively selected four Farmers Producers Company of Dakshin Dinajpur district, West Bengal. Performance index was calculated and found that Purnobhava Agro Farmer Producer Company Limited had the highest index value of 10.46. Trimohini Farmers Producer Company Limited came in second with an index value of 8.29. Krishi Jagoron Producer Company Limited was in third place (score 8.00) and Bhuihara Farmers Producer Company Limited, with a score of 6.83, was in the fourth position. The finding is supportive with the findings of the grading score of the four FPCs calculated as per NABARD’s criteria. Technical efficiency score of the fish farmers, vegetable farmers and cereals crop farmers under the selected FPCs were also analyzed and found that the average measure of overall technical efficiency was 22.2 per cent for cereal crop farmers, 44.3 per cent for vegetable farmers and 63 per cent for fish farmers. Average scale efficiency was estimated at 79.4 per cent, 96.8 per cent and 98.6 per cent for the said categories of farmers, respectively. Majority of the cereals crop farmers (93%) and a sizeable population (60%) of vegetable farmers were operating under sub-optimal scale. However, around 20 per cent of the fish farmers were operating under sub-optimal scale. The analysis indicates crop, vegetable and fish farmers can, on an average, increase their output by 78 per cent, 56 per cent and 38 per cent, respectively by operating at an optimal scale and by eliminating pure technical inefficiencies through the adoption of best practices of the efficient farms.