Giiricidla seoium is herb. Its various plant parts of the same plant are used for the invention in particular flowers of the plant are used. The flowers are dried at 40-50 °C under the sunlight or at the maintained, temperature. These are dried flowers are crushed to fine powder and subsequently extracted with the non polar aliphatic or aromatic solvents or mixture of various solvents is used. the extract obtained is evaporated to dryness and crystallized by using non polar solvents, The crystals obtained arer mixed with therodenticidally acceptable excipient in the rodenticidally effective amount. The composition can be converted in to peltetize or in solid powder, qel form suitable for administration.