A checklist of species is an invaluable tool for both researchers and the interested public particularly when it is up dated from time to time. Latest revised edition of Mammal species of the World by Wilson and Reeder (2005) has became 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 the re-revised checklist particularly in context with Indian mammals. Students of mammalian taxonomy have made significant advances in recent years, especially with the advent and refinement of additional modern techniques. Moreover a significant number of new mammalian species have been described the information about which needs to be made available to the researchers. 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 number of workers at different times. The present work reports 420 species under 191 genera of 48 families in 14 mammalian orders within Indian territory.