Solar energy is a important renewable source which is capable of solving many of our crisis. This book gives detailed account of solar energy in Indian context. It has analysed the historical evolution, traditional way of using solar energy and development taken place so far. It has also given background technology like concept of heat transmission and future possibilities like magnetic force available in solar wind. Lastly it has suggested smaller equipment for decentralized use of solar energy. The book is designed for al from a layman, technologists to actual users.