Parwanoo is a small villege turned industrial town just 2 km from Kalka. If you are driving to Shimla, you may probably not even notice this place. I went there on a business trip. It is a government run hotel, quite old but well maintained building. Like in any other govt run hotel, you can get service only if you give tips or if you are a high standing official. Any way the hotel is miles away from luxury, and because it is right on the busy kalka shimla highway, don't expect good sleep in peace.