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The empire was founded in 322 BC by Chandragupta Maurya through the help of Chanakya , who rapidly expanded his power westward across central and western India , taking advantage of the disruptions of local powers following the withdrawal by Alexander the Great .
 Chandragupta Maurya, Chanakya, India, Alexander the Great
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chandragupta Maurya, Chanakya, India, Alexander the Great