A case study was conducted in command area of Khetawali Distributory of Indira Gandhi Nahar Pariyojana in Hanumangarh district to assess water availability and its utilization on the basis of 10 years period from1994-95 to 2003-04. For this study data on canal running period, quantity of water supplied, rainfall during the period, area under different crops during Kharif and Rabi in different years, water requirement of different crops etc were collected from different sources. The Relative Water Supply was calculated to know the match between water supply and water demand in the command. The results of the study revealed that canal water supply was neither uniform during the seasons nor during the years. The canal water-running period was found more in rainy period. The annual canal running period fluctuated from 98 to 268 days during different years. From 2000 onwards canal water flow was adversely affected. Wide variation in rainfall was also noticed during different years in the command.