Withania somnifera (Solanaceae) Dunal commonly known as Ashwagandha, is an Indian medicinal plant that grows as an evergreen shrub in dry parts of India. Withania somnifera (L.) leaves, stem and root were screened for antioxidant activities by different solvent extraction methods. The extracts exhibited a good scavenging effect on DPPH, chelating activity and reducing power and the scavenging effect of the extracts was comparable with the standard ascorbic acid. The total phenolic content was determined as gallic acid equivalents. Among the different solvent extracts of each parts, methanol extract showed maximum antioxidant capacity than the other extracts like methanol > chloroform > acetone > ethyl acetate.