Identify the pictures

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Across
  1. 5. orange city
  2. 6. steel city of India
  3. 9. spice garden of India
  4. 10. city of Nawab
Down
  1. 1. paradise on earth
  2. 2. pink city
  3. 3. gateway of India
  4. 4. City of lakes
  5. 7. Diamond city
  6. 8. silicon valley of India