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He is married to his co-star Karan Singh Grover 's ex-wife Shraddha Nigam whom he met on the sets of Dill Mill Gaye .
 Karan Singh Grover, Shraddha Nigam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Karan Singh Grover, Shraddha Nigam