Looking into account, the effective microorganisms (EM) discussed in green revolution are able to enhance plant growth and crop productivity. These act as fertilizers without causing any hazard on edaphic profile and ecological sustainability. In recent scenario, these microorganisms as PGPR are known to produce phytohormones and cover tremendous role in sustainable agriculture. Major six classes of phytohormone including natural, semi-synthetic and synthetic check out seed dormancy of several crop plants and allow to germinate in short period and further induce plant growth in sustainable manner, trigger plant immunity, maintain stress tolerance and aid plant maturity for fruiting and seedling. Under this review, discussion lies on all the aspects covering role and significance of auxin and other phytohormone-producing PGPR important to agriculture in near future.