Towards the plant beneficiary rhizobacteria (PBR) and agricultural sustainability.- Soil microbial hotspots and hot moments: management vis-a-vis soil biodiversity.- Microbes: a sustainable approach for enhancing nutrient availability in agricultural soils.- Impact of land uses on microbial biomass C, N, P and microbial population in Indian Himalaya.- Molecular and physiological characterization of plant growth promoting rhizobacteria: methods and protocols.- Microbial transformation of sulphur: an approach to combat the sulphur deficiencies in agricultural soils.- Plant growth promoting rhizobacteria (PGPR) and its role in sustainable agriculture: Present status and future prospective.- Towards the nutrient immobilization and mineralization in soil nitrogen.- Towards the bio-availability of zinc in agricultural soils.- Free living and associative symbiotic nitrogen-fixing microorganisms.- Phosphate solubilizing microbes: diversity and phosphates solubilization mechanism.- Role of phosphate solubilizing microbes in the enhancement of fertilizer value of rock phosphate through composting technology.- Use of plant growth promoting Burkholderia species with rock phosphate solubilizing potential towards crop improvement.- Zinc solubilizing bacteria for zinc biofortification in cereals: a step towards sustainable nutritional security.- Application and mechanisms of plant growth promoting fungi.- Towards the microbial transformation of phosphorus in agricultural soils.- Towards the mechanisms of nutrients solubilization and fixation in soil system.- Role of PGPR in sustainable agriculture: molecular approach towards disease suppression and growth promotion.