<b>Analysis on Spatial Variation of Rainfall and Groundwater Fluctuation in Hebballa Watershed, Mysore District, Karnataka, India</b> In this study examine the groundwater and rainfall variability, seasonal variation of rain fall using gis technics, The maximum rainfall was recorded at Harohalli 71.80 , having the monthly and annual average respectively. Similarly the minimum rainfall was at Dharmapuri in 61 average value. The monthly rainfall curve has its peak during October and lowest point during January. SW monsoon and NE monsoon almost play an equal role in their rainfall contributions, whereas the post monsoon rainfall occurrence is negligible in this region. 1291-1297 Issue-1 Volume-2 Gangadhara G