Mammal Species of the World by Wilson & Reeder (2005) has become the current standard for mammalian taxonomy. However the additional information since 2005 coupled with the vast increase in taxonomic literature, has resulted in the need for revision particularly in the context of Indian mammals. Students of mammalian taxonomy have made significant advances in recent years, especially with the advent and refinement of modern techniques. Moreover a significant number of new mammalian species have been described. The objective of the current work is to compile the account of Indian mammalian species reported by Corbet and Hill (1992), Alfred et al.(2002), Wilson and Reeder (2005) and Nameer (2008) and present the updated checklist in light of the recent revisionary studies reported by a number of researchers. The present work reports 420 species under 191 genera of 48 families in 14 mammalian orders within Indian territory.