In conservation agriculture composition, structure and natural biodiversity of soil is altered as little as possible to reduce soil erosion and compaction. Farmers drastically reduce tillage and keep a protective soil cover of leaves, stems and stalks to protect the soil from heat, wind and rain. As less or no tillage is practiced, the cost of labour, machinery and fuel is reduced. A power tiller operated zero till drill and seedbed planter have been designed and developed for introducing conservation agriculture in Bangladesh, which is new to the country. These were fabricated with locally available materials like mild steel angle, mild steel bar, mild steel sheet, ball bearing etc. These were operated by 9 to 12 kW power tiller. Field demonstrations were conducted to determine their capacity, effectiveness of sowing, planting and fertilizer placement cost, and yield. In zero till sowing, the average yield of wheat was 13% more than the conventional method whereas that in maize was 15% less. The sowing/planting cost in zero tillage system was 83% and 89% less than the conventional system in wheat and maize, respectively. In bed plating system, the yields of wheat, mungbean and maize were 24, 33 and 33% more than the conventional system. The cost of planting in the seedbed system was 59% less than the conventional system.