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Intelenet Global Services is a third-party Business Process Outsourcing ( BPO ) & contact center provider headquartered in Mumbai , India , backed by Blackstone Group .
 Intelenet Global Services, Mumbai, India, Blackstone Group
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Intelenet Global Services, Mumbai, India, Blackstone Group