Ancient Indian History By Johnty 2500 BCE Indus Valley Civilization https://www.britannica.com/topic/Indus-civilization 1500 BCE Vedic Civilization https://gkchronicle.com/ancient-history/Vedic-literature.php 543 BCE Magadha Empire https://www.livehistoryindia.com/story/history-of-india-2000-years/magadha-the-first-empire-543-330-bce/ 321 BCE Mauryan Age https://www.nationalgeographic.org/encyclopedia/mauryan-empire/ 185 BCE Post Mauryan Age https://en.wikipedia.org/wiki/Post-Mauryan_coinage 320 Gupta Age http://www.historyshistories.com/india-gupta-empire.html 600 Post Gupta Age https://www.civilsdaily.com/post-gupta-period/