The present study deals with the diversity, population structure and regeneration of tree species in lalgarh forest range of India for understanding the future stability of the forest. A total of 52 tree species of 45 genera and 23 families were recorded from study site. Shorea robusta emerged as the dominant and Diospyros melanoxylon was codominant tree species with their average density (366 no/ ha and 183.13 no/ha respectively) basal area (17.31 m²/ha and 2.79 m²/ha respectively) and IVI value (119.32 and 27.49 respectively). The size class distribution of tree of species showed a reverse ‘J’ shaped population curve with larger stem density and total basal area in lower girth classes. It was indicated a stable nature of forest stand. Although, maximum number of tree species represented ‘fair’ and ‘poor’ regeneration status. This could be due to low productivity and over exploitation of tree species by local community for multiple uses. It is a matter of concern. However, this study provides baseline information about present status and future stability on the tropical dry Lalgarh forest range.