The results demonstrated that the organic wastes can be converted into an environmentally-friendly nutrient source by vermicomposting, using different microorganisms. Growth and population of E. foetida were influenced by different waste materials. Among waste materials, paddy straw was preferred by E. foetida, followed by water hyacinth, and saw dust. Inoculation of microorganisms with earthworms accelerated the decomposition process. Vermicompost using T. viride showed the highest nutrient content as well as enzymatic and microbial status, but the combined effect of all inoculated microorganisms proved to have a significant effect on the quality of vermicompost.