This seminar report summarizes information about nuclear power plants. It was prepared by three students for their Electronics and Communication department. The report provides an introduction to nuclear technology, including the schematic arrangement of nuclear reactors, the structure of atoms, and nuclear chain reactions. It also describes nuclear fission and fusion, nuclear fuels, the components of nuclear reactors, and the two main types of nuclear power plants - pressurized water reactors and boiling water reactors. Additionally, it discusses nuclear power generation in India. The report is intended to educate about nuclear power plants and technology.