It seems there is direct flight from Mumbai to Shanghai and Beijing. You can go to Shanghai first, then get to Ningbo and Jiangsu, then take train to Baoding (or airplane to Shijiazhuang then take bus to Baoding. Get to Beijing and go back to Mumbai. You can enter via Beijing first. When are you going to visit thesse places? If it is very soon, just wear summer clothes, for it is now above 30 degrees.