According to Ayurvedic system of medicines a large number of plants are employed in the traditional medicines for the treatment of several diseases like cancer (Kirtikar and Basu, 1935; MacDowell, 1958; Nandkarni, 1975; Chopra et al., 1982; Jain, 1997 and Sharma and Kumar, 2000), leprosy (Sanghi and Kumar, 2002), hepatic disease (Sharma and Kumar,2001), paralysis (Sharma and Kumar, 2001), urinary stone track disease (Mishra and Kumar, 2001), depression and other nervous disorder (Mishra and Kumar, 2000) and diabetes (Raghunandan and Mitra, 1982 and Gupta and Kumar, 2000, 2002) .