This book comprises 17 chapters namely agricultural meteorology, agronomy, soil science and agricultural chemistry, genetics and plant breeding, agricultural biochemistry, agricultural biotechnology, fruit science, vegetable science, agro-forestry and forestry, plant physiology, agricultural microbiology, environmental sciences, plant pathology, agricultural entomology, agricultural economics, agricultural extension, animal husbandry and dairy sciences. Multiple choice questions given at each chapters are extremely valuable for preparation of competitive exams like Union and State Public Service Commissions, Agricultural Research Services – National Eligibility Test (ARS – NET), JRF, SRF, ICAR NET , ARS,NTA ICAR AIEEA-PG Institute of Banking Personnel Services (IBPS), NABARD, Food Safety Officer, PG entrance exams of State Agricultural Universities (SAU’s), All India Entrance Examinations for UG and PG admissions to agriculture, National Seeds Corporations (NSC), Food Corporation of India (FCI), Central Warehousing Corporation (CWC), Indian Farmers Fertilizer Cooperative Limited (IFFCO) and other competitive examination related to the subject.