The microbial consortium is the wealth of soil ecosystem where plants mostly get predominantly benefited in nutrients, mechanical support, and stress tolerance like essential life supports. Microbial population offers a significant bio-stimulation to plants for promising growth, and reactivity to environments, including moisture stress, salinity, temperature variation, and heavy metal/xenobiotic contamination. The biostimulants from rhizobacteria, nitrogen-fixing bacteria, and mycorrhizal association could enhance plant resistance with improved growth regulators, conversions of the nutrients into a simpler form, osmotic adjustment, and reactivity to toxic endogenous chemicals like reactive oxygen/ nitrogen/sulfur species, phenols, etc. Understanding the molecular signaling from microbes transduced into plants is based on recent advancements in genomics, transcriptomics, proteomics, metabolomics, and phenomics. These all together collected the data and expanded the insights of molecular communication between plant-microbe (specially rhizobacteria) for the development and improvement of stress resilience. Still, a significant knowledge gap exists in molecular signaling and the development of biostimulants inside the plants and their adoption for stress tolerance. The conversion of chemical signals into other molecular form at cellular and nuclear levels is improvised into gene regulation. Specific genes under environmental stresses are modulated in plants both for expression and regulation with rhizobacterial signaling. Precise mechanisms are still to be deciphered with gene regulation levels through microRNA and epigenetic control under induction of rhizospheric microbial consortium. This short, however, compact review is expected to underscore the current visions and future prospective in the field of potential for the application of biostimulants in sustainable agriculture.