Citrus limon L Osbeck and citrus limon L Burmf belong to family Rutaceae. Citrus food and derive product have beneficial impacts on human health. More than just a vitamin C rich fruits, lemon is a powerful medicinal plant with numerous benefits that have been enjoyed for over 3000 years. Helminthiasis or worm infection is a common infection in human, affecting a large population of the world. Considering this, comparative study of anthelmintic activity of Citrus limon L Osbeck and Citrus limon L Burmf leaves and peel was carried out in this experiment. Ethyl acetate, ethanol and methanol extracts of leaves and peel of both Citrus limon have been evaluated for anthelmintic activity against Indian Earthworm species Eicinia foetida. The results reveal a dose dependent increase in activity of the extracts at 5, 10 and 20 mg/ml concentrations. All the extracts exhibited better activity than standard compound Albendazole. Citrus limon L Osbeck leaves and peel extracts are found to be more active than respective citrus limon L Burmf extracts. [ABSTRACT FROM AUTHOR]