Answer:
1. Chandragupta was the founder of the Mauryan dynasty (reigned c. 321–c. 297 BCE) and the first emperor to unify most of India under one administration. He is credited with saving the country from maladministration and freeing it from foreign domination.
2. Chandragupta overthrew the Nanda dynasty and then ascended to the throne of the Magadha kingdom, in present-day Bihar state, India, about 325 BCE. Alexander the Great died in 323, leaving Chandragupta to win the Punjab region about 322. The following year, as emperor of Magadha and ruler of the Punjab, he began the Mauryan dynasty.
3. Chandragupta built an empire ranging from the Himalayas and the Kābul River valley in the north and west to the Vindhya Range in the south. Its continuation for at least two generations is attributable in part to his establishment of an administration patterned on that of the Persian Achaemenid dynasty and Kautilya's political text, Artha-shastra.
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