Megalithic monuments are the structures of large and roughly dressed stones, erected as sepulchral monuments or as memorials of notable events. These monuments have been built up by the people from various parts of the world living in several different periods. Megaliths in India represent a widespread phenomenon. Its types and geographical significance varies from place to place. The present review article is an attempt to provide the detailed information regarding various aspects of megalithic monuments, with special reference to India. The work is based on the secondary sources of the data. The description is illustrated through pencil sketches drawn by the author herself. The article is an important contribution to Archaeology, History and Anthropology. The students as well as other interested readers may get benefit out of this study and this would stimulate interest among them to conduct research on the various aspects of the megalithic monuments and culture, required for preparing database for megaliths in India to provide collective information for further analysis.