Abstract: Energy is a critical input in all forms of economic activity on adaptability basis and plays a significant role in daily living from cooking to production activities. A farm is both consumer of energy and also producer. Farming through production process converts input energy into output energy on various forms of outputs produced in agriculture. The pattern in which energy inputs are used in crop production is closely related to the nature of cropping pattern and crop intensities. Therefore, there is a need to understand the constraints faced by farmers in energy consumption during crop production. In this context, the present study was conducted in Belagavi and Gadag districts of North Karnataka. The primary data pertaining to the crop year 2021-22 were collected from 72 farmers from irrigated condition and equal number of farmers from rainfed condition from two districts, comprising 144 farmers. The collected data on constraints were analysed using Garrett ranking technique. The major findings of the study revealed that non-availability of labour during peak operations in crop production observed in both Belagavi and Gadag districts (with Garrett score of 76.55 and 67.69 respectively). The second major constraint in Belagavi district was non-availability of draft animals (65.44) while, in Gadag district it was lack of accessibility of inputs like seeds, fertilizers and FYM (62.90), respectively. The third constraint in Belagavi district was non-availability of required machines at custom hiring centers (Garrett score 61.25) while, in Gadag district it was high cost of using mechanical power during farm operations (Garrett score 59.63) and the last constraint in both districts was given to Govt. support through subsidy to purchase of machinery (with score of 18.55 and 15.28).