Abstract: The job of automatic frequency regulation is achieved by governing systems of individual turbine generators and Automatic Generation Control (AGC) or Load frequency control (LFC) system of the hydro power plant. This seminar report addresses a comprehensive literature survey on load frequency control in hydro power plant. The report is aimed to present the various control and structural schemes of LFC present in the microhydro power plant. The LFC schemes on different aspects like classical control based LFC schemes, LFC schemes based on modern control concepts are discussed. The aim of the proposed work is to design a fuzzy controller that would manage almost the whole operation of the generating unit.