Zero tillage potato is increasing attention for cropping system intensification in the India. Zero tillage potato with the use of rice straw mulch reduces the worst effects of climate change, soil salinity, and increases productivity with minimum input. A trail was conducted at Krishi Vigyan Kendra, Begusarai, Bihar during Rabi 2022-23 just after harvesting of paddy. The trail comprised two treatments viz., Zero tillage potato method and Conventional method with three replications. The variety used for both the treatments was Kufri Bahar. Trail result shows that the highest yield of potato was obtained in zero tillage method (236.50± 7.91 q/ha) as compared to the conventional method (201.0±2.13 q/ha) that was 17.66% more. The benefit cost ratio was highest in zero tillage i.e. 2.4, which was 41.17% higher than the conventional method. In an economic view, the result of study showed zero tillage method is cost effective compared to conventional method, it is saving money in irrigation, weeding, field preparation etc. Zero tillage method improves the tuber formation and reduces the chances of early blight as well as late blight disease because of no tillage and mulching compared to the conventional method.