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Screenwriter Himanshu Sharma began working on the film in July 2013 and revealed that only the first ten minutes would have a London backdrop , before the story returns to Lucknow , Kanpur and Delhi .
 Himanshu Sharma, London, Lucknow, Kanpur, Delhi
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Himanshu Sharma, London, Lucknow, Kanpur, Delhi