Agriculture sector is a major contributor of national income in India, while ensuring food security and employment. Plant exposure to both biotic and abiotic stresses causes major losses to agricultural production worldwide. Biotic factors mainly include interaction with other pathogenic or parasitic microorganisms and insect pests, whereas abiotic factors include temperature, drought, water logging, and salinity. Microorganisms play an important role in the growth and development of plants. They confer several benefits to the plants and help them to alleviate the stress.