The pattern of distribution of water resources and its requirements in Left Bank Low Level Canal (LBLLC) System of Tungabhadra project in Karnataka was estimated at different locations of the canal system and seasons. The total supply of water resources (13.020 million) comprised of 10.578 million ha-cm (81.24%) from canal and 2.442 million ha-cm from rainfall infiltration. However, the contribution of canal water to total water supply had declined from 84.04 per cent in head region to 18.96 per cent in tail region. Across the seasons, the total water resource available in kharif was relatively higher than that of rabi/summer in all the locations of the canal system. The water require­ment for crops (96.24%) formed major source of demand for water resource followed by domestic purposes by human population (3.21%) and live stock (0.55%). In the case of crops, the water requirement of paddy was found to be substantial in the total water demand both in kharif (82.64%) and rabi/summer (68.63%) seasons. However, the wet crops concentrated at head region while light crops at middle and tail regions of the command area. Thus, there is a need to monitor the supply and utilization of water resources by establishing Project Planning and Monitoring Cell involving experts from engineering, agriculture and social science.