1. Introduction -- 2. Problems of small and marginal farmers related to agriculture -- 3. What is cropping system -- 4. Crop component -- 5. Vegetable component -- 6. Horticultural component -- 7. Livestock rearing -- 8. Poultry rearing -- 9. Fish farming -- 10. Bee-keeping -- 11. Mushroom cultivation -- 12. Vermicomposting -- 13. Rabbit farming -- 14. Turkey rearing -- 15. Sericulture -- 16. Waste recycling in IFS -- 17. Sustainable Rural livelihood Security through IFS -- 18. Farming system approach and its role towards livelihood security under different farming situations -- 19. Concept of farming system in relation to conservation of natural resources -- 20. Distribution of area under different farming components in two-hectare models of farming system in a tropical and sub-tropical situation -- 21. Scope of Farming System in the Indo - Gangetic Plain to Ensure the Food Security in the Country -- 22. Organic integrated farming system -- 23. Scope of integrated nutrient management in the Indo-Gangetic plains towards food productivity enhancement in a major cropping system -- 24. Conclusion.