This book comprehensively covers the entire curriculum for the civil services examination administered by the Union Public Service Commission and State Public Service Commissions. The chapters have been organized in a subject-specific manner to ensure complete coverage of the agriculture paper syllabus. The book encompasses all the subjects, such as agronomy, forestry, plant breeding, soil science, horticulture, vegetables, entomology, pathology, extension education, economics, genetics, seed technology, and plant physiology.