Modern era is witnessing versatile application and utilization of prophecies, processes, and products of sustainable agriculture that pose minimum or negligible negative impacts on environment. Use of microorganisms for curbing the attack of plant pathogenic organisms/pests forms the foremost limb of integrated pest management and is responsible for either imparting induced systemic resistance or improving the general health of the inoculated plant due to enhanced nutrient acquisition/nutrient availability, thereby increasing the chances of survival, growth, and development of plant. Biological control utilizes natural enemies such as parasites, predators, pathogens, or competitors, deriving its energy directly from the pests themselves. It would be a useful technology that could suffice the existing arsenal of chemical pesticides or may exclude the latter in the coming years.