India is one of the largest producers of agricultural crops globally and surpassed self reliant stage in spite it is importing vegetable oil. In order to bridge the demand supply gap it is important to concentrate on the production productivity of oil seed crops. The present study was conducted in Tumkur district of Karnataka in the year 2022-2023 to study the personal, socio-economic and psychological characteristics of groundnut crop growers and their relationship with performance with a total sample size of 120 growers. Ex-post facto research design was adopted. The study revealed that, more than half (65.84%) of the groundnut crop growers belonged to middle age. More than, one-third (38.33%) of the groundnut growers had high school education. More than two-third (65.00%) of groundnut growers belonged to medium family size. Half of the groundnut growers (50.00%) were small farmers. Whereas, majority (83.33%) of the growers belonged to medium level of annual income. Groundnut growers had a medium level of farming experience (38.33%), extension contact (51.67%), management orientation (45.00%), mass media exposure (44.17%), credit orientation (42.50%), achievement motivation (42.50%), economic motivation (41.66%), deferred gratification (40.83%), innovative proneness (37.50%) and low level of risk bearing ability (41.67). Further, education, annual income, extension contact and mass media exposure had positive and significant relationship with their performance at one percent level of significance. Whereas, land holding, farming experience, economic motivation, management orientation, credit orientation, deferred gratification, innovative proneness, risk bearing ability and achievement motivation had positive and significant relationship with their performance at five percent level of significance.