“…A detailed study on geochemistry and genesis of F --containing groundwater in different geological formations of India has been done by Handa (1975), Sahu and Karim (1989), Jacks et al (1993Jacks et al ( , 2005, Datta et al (1996), Agrawal et al (1997), Gupta et al (1999Gupta et al ( , 2005, Das et al (2003), Chakraborti et al (2000), Bhosle et al (2001), Ray et al (2000), Madhavan and Subramanian (2002), Muralidharan et al (2002), Ayoob and Gupta (2006), Misra and Mishra (2006), Kundu and Mandal (2009a, b), Raju et al (2009) and Vikas et al (2009). Jha and Jha (1982) explain the natural sources as responsible for F -contamination in India that causes serious health problems.…”