These three cities are not far from each other. They are all located in Zhejiang Province. Trains and coach buses are available between each two cities. So, you can choose anyone of them as your beginning point.Could you tell me which city you will choose as your entry city to China? Beijing or Hangzhou directly? Are there any direct flights between New Deli and Hangzhou? If you can answer my questions, I think I can help you find a more favorable itinerary.