An attempt was made to know the extent of adoption of latest production technologies and also the constraints faced by the farmers. The Krishi Vigyan Kendra Ajmer carried out front line demonstrations on sesame covering an area of 130 ha at 270 farmers’ field to exhibit potential and economics of latest production technologies as compared to farmer’s practice. Further, all the 270 farmers who have conducted FLD of sesame during kharif 2017 to 22 were purposively selected to assess the recommended technology and farmer’s practice of sesame production and study the productivity and economics of frontline demonstrations on farmer’s field. The data collected from the reports of FLDs compiled by the KVK on the production technology of sesame crop were used and compared with prevailing production technologies of sesame crop.The improved technologies of sesame demonstrations in front line demonstrations recorded increase in yield in the range of 25.28 to 43.95 percent over local check. The economic analysis of yield performance revealed that front line demonstrations recorded higher average gross return (Rs.61148 /ha), average net return (Rs. 40245/ha) with higher cost benefit ratio of 2.93 as compared to average gross return (Rs.44389/ha) and average net return (Rs. 25944/ha) with cost benefit ratio of 2.44 of local check. It was also concluded that there was a significant difference in the extent of adoption of improved technologies in sesame crop between FLD farmers and non-FLD farmers. The major constraints in adoption of improved technologies were non-availability of seeds of suitable varieties, non-availability of quality seed timely, poor crop germination, lack of irrigation facilities, drought at critical stages of crop growth and Incidence of diseases such as phyllody were the major constraints faced by the respondents in improving the yield of sesame crop.