The document provides vocabulary terms related to ancient India. It defines terms like the Indus River, Subcontinent, Himalaya mountains, Indus Plain, Harappa and Mohenjo-Daro which were early cities of the Indus Valley Civilization. It also explains concepts from Hinduism like the Vedas, caste system, reincarnation and dharma. Key figures and concepts from Buddhism are outlined like Siddhartha Gautama, the Four Noble Truths and the Eightfold Path. Important empires that ruled India such as the Maurya Empire founded by Chandragupta Maurya and the Gupta Empire are summarized.