Fluoride occurs naturally in most water supplies. Main sources of fluoride in groundwater- The weathering and leaching of fluorinated minerals. Industrial wastewater discharges . With increased human industrial activities, high fluoride-content water has become a widespread problem in the world. WHO has given a guideline limitation of less than 1.5 mg/L of fluoride in drinking water. Various industries such as glass and ceramic production, fertilizer and semiconductor manufacturing contribute to fluoride pollution to a large extent. The effluents of these industries may reach to thousands of mg per L, which is higher than natural water.Depending on the concentration and water temperature, the effect of fluoride in drinking water can be beneficial or harmful to mankind. The presence of small quantities of fluoride in ingested water is often considered to have a beneficial effect on human health and helps in the normal mineralization of bones and dental formation. On the contrary, excessive intake of fluoride leads to osteoporosis, Alzheimers syndrome, skeletal fluorosis, dental fluorosis, cancer, infertility, and thyroid disorder.