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Not AvailableAn investigation was carried out for identification of slot size on vertical plate type metering device and development of single row millet planter-cum-fertilizer drill for kodo (Paspalum scrobiculatum) and little millet (panicum sumatrense). Experiments were conducted in laboratory with three slot sizes and three forward speeds (1, 2 and 3 km/h) with kodo and little millets. Slot size of 3 x 3 mm was found to be suitable for kodo millet as it delivered optimum average seed spacing (ASS), seed rate (SR) and coefficient of uniformity (Uc) as 5.90 cm, 4.50 kg/ha and 0.90, respectively. For little millet also, 3 x 3 mm slot size on vertical rotor plate provided optimum ASS, SR and Uc as 5.70 cm, 2.24 kg/ha and 0.82, respectively. No seed damages were observed with any of the selected plates. Vertical plate with 10 × 10 mm slot size at 40% opening of shutter was found suitable for fertilizer metering for both crops. Based on the laboratory evaluation, a manually operated single row planter-cum-fertilizer drill was developed and evaluated under field conditions. The implement field capacity and field efficiency was found to be 0.048 ha/h and 69% for kodo and 0.05 ha/h and 68% for little millet, respectively. Seed saving with developed planter-cum-fertilizer drill as compared to traditional method of line sowing and broadcasting was found to be 76% and 90%, respectively for kodo; for little millet, it was 83% and 93% respectively. The cost of operation was found to be ` 750/ha for kodo and ` 662/ha for little millets. Yield obtained with developed planter-cumfertilizer drill were 1870 kg/ha and 1560 kg/ha which was to 139% and 51% more when compared with broadcasted kodo and little millet respectively.Not Availabl