1. General concepts 2. Production technology, properties and quality management 3. Status of research and application of biofertilizers: Global scenario 4. Mechanisms and applications 5. Quality control 6. Setting up a biofertiliser unit 7. Relevance in organic agriculture 8. Global scenario of biofertilizer production and consumption 9. Quality standards for production and marketing of biofertilizers 10. Constraints in biofertilizer production