The study was conducted in 19 villages of Bikaner and Churu districts of Rajasthan with the sample size of 316 mothbean growers. Results indicated that the mothbean growers in majority knew improved cultivation practices of mothbean and had adoption to the moderate extent. The study highlights that there are varous of constraints which affect the process of adoption, however, few of them are most important one which affect the extent of adoption of recommended production technology of mothbean. The most importance were weed control through ‘herbicides is technically complex phenomenon€™, ‘lack of knowledge about improved technologies of seed, weedicides and plant protection measures’, ‘absence of assured marketing at remunerative price and insurance policy facility’, ‘lack of operational skill in the plant protection equipments’ and ‘sandy storm, high wind velocity and high temperature affect the growth of crop and productivity’, ‘unavailability of inputs at the time of peak season’ and ‘lack of water policy decided by the government€™. The another important constraints least perceived by the farmers were labor charges are costly, lack of appropriate agronomical practices and low yield potential of prevalent varieties. Moreover, it was evident that with the increase in knowledge and adoption there is decrease in number of constraints face by mothbean growers

Keyword: Mothbean; Constraints;Ext