Palace puzzle

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Across
  1. 2. vehicle that uses no fuel
  2. 4. a place of worship
  3. 5. four sided covered building with no walls
  4. 7. water body with India’s national flower
Down
  1. 1. a place to grow smaller plants
  2. 3. a place to watch the stars
  3. 6. an artificial source of water
  4. 7. a light producing device