The book "Microbial Production of Phytohormones and its Effect on Plant Growth" offers a comprehensive examination of the role of microorganisms in agriculture, particularly concerning the production of phytohormones such as indole-3-acetic acid (IAA) and gibberellic acid (GA). Given the global challenges in agriculture, such as limited arable land and the rising demand for food, the importance of microbes as natural allies in enhancing plant growth is emphasized. The research conducted as part of the M.Phil. program demonstrates how the microbial production of phytohormones can not only increase yields but also promote sustainable and economically viable agriculture. This book is a valuable resource for students and professionals engaged in the intersections of microbiology, plant sciences, and agricultural economics.