Nobody has done assessment of water quality of Budaki M.I. tank even though it is utilized for pisciculture, irrigation and domestic purposes. It is an urgent need to assess the quality of water. The Physico-chemical parameters of Budaki M.I. tank were studied during Jan. to Dec. 2010, from four different sites. The results revealed that there was a significant seasonal variation in same physico-chemical parameters. The Water temperature ranges from 19°C to 29°C, Total Solids 146 to 211mg/l ,Total Dissolved Solids 118 to 170 mg/l, PH 7.1 to 8.3 mg/l, Hardness 118 to 219 mg/l, Nitrates 0.22 to 0.48 mg/l, Phosphate 3.1 to 9.1 mg/l, Calcium 7 to 35 mg/l, Magnesium 6 to 28 mg/l. Above values are within the acceptable limits of drinking water ,hence the water is potable and suitable for various purposes.