Chapter 7 Outline ? India and Southeast Asia, 1500 b.c.e.?1025 c.e. India and Southeast Asia, 1500 b.c.e.?1025 c.e. I.????? Foundations of Indian Civilization, 1500 b.c.e.?300 c.e. The Indian Subcontinent India has three topographical zones: (1) the northern mountainous zone; (2) the Indus and Ganges Basins; and (3) the peninsula. The Vindhya Mountains and the Deccan plateau divide the peninsula from the other two zones. The peninsula itself includes further topographical sub-regions including: (1) tropical Kerala coast in the west; (2) Coromandel Coast in the east; (3) flat area of Tamil Nadu in the south; and (4) island of Sri Lanka.