Agriculture is the art and science of cultivating the soil, growing crops and raising livestock. It includes the preparation of plant and animal products for people to use and their distribution to markets. Agriculture, as the backbone of our society, draws a lot of attention to a new revolution of its sort, and it is the responsibility of the next generation to take agriculture to new heights. The epidemic covid-19 recalled Jawaharlal Nehru's remark, "Everything can wait but not agriculture." Genetics and plant breeding, Plant pathology, Microbiology, Crop physiology, Seed science and technology and few aspects of overall agriculture are the major part comes under this book. This book contains point wise information of above mentioned subjects which will be helpful for the students to crack several exams like ICAR-JRF, ICAR-SRF, ARS, UPSC and many more state exams.