This manual is a practical guide for anyone involved in the rejuvenation of water bodies. It explains the different types of traditional water bodies, including irrigation tanks, ponds, and channel networks, together with the legal provisions governing them. The manual presents the engineering principles, standard designs, and technical specifications for key structures such as bunds, sluices, weirs, and channels. It also summarises the prevailing government guidelines for implementing rehabilitation works, making it a valuable reference for government agencies, Water Users’ Associations, NGOs, corporate CSR programmes, and other organisations engaged in water body restoration.