Major water supply for agriculture and domestic purpose in Mandya district is from Krishna Raja Sagar reservoir. Even then, residents of most of the areas of Mandya city are mainly dependent on bore well water for domestic and small scale industries, especially in summer season. Hence large numbers of bore wells are existed. Fluoride content of selected twenty five bore-well water in and around of Mandya city was analyzed in the month of January, 2009. The study reveals that the fluoride concentration is within the permissible limits in all places of Mandya city as prescribed by BIS and WHO. Hence the bore-wells water of Mandya city can be conveniently used for drinking without any pre-treatment.