A tremendous interest has emerged with respect to the importance of microbial diversity in rhizospheric soil which depends on soil health and quality. The objective of this study was designed using an annual crop Chilli (Capsicum annuum L) and the diversity was constantly monitored and studied for the species dominance, richness and evenness of plant growth promoting microorganism. Expecting such an empirical relationship from the single Chilli is useful to test diversity predictions in natural sites. Although there appears to be a great deal of work on plant growth promoting microorganism, there are very few reports on such associations with Chilli plants. The findings of the present investigation will highlight the plant growth promoting microorganism from the local soil of chilli plants. Diversity of plant growth promoting microorganism in chilli soils collected from various places includes 7 different criteria’s such as Bacteria, Azospirillum, Azotobacter, Pseudomonas, Actinomycetes, Rhizobia, and Fungi. Diversity indices was analysed using Pearson’s correlation matrix. Among all the 7 different criteria the most significant was Rhizobia and Actinomycetes respectively in the soil samples collected from different region.