1. Umaid Bhavan Palace:
Umaid Bhavan Palace is located in the udaipur city. Most of it has been acquired by Taj group and it also had Priyanka Chopras wedding.
Only a limited part of the palace is open for the tourists including the museum. The museum explains the royal family lifestyle. There is also a car club which shows the vintage cars used by the Kings of Umaid Bhavan.
Ranakpur is a Jain temple that has by the the most beautiful carvings I have ever seen. Every pillar of this temple is carved differently. It is a must visit for someone who is visiting Rajasthan for it's history and alluring monuments.
There is no entry fee for Indians. There are paid recoded tapes that guide you through the history of the temple.
But as it's a temple there are a few restrictions on the dress to be worn. For ladies, off shoulder dresses or short dresses are not allowed.For males shorts are prohibited. Photography inside the temple is also not allowed.
This temple is amidst the Ranakpur forest reserve which is to be crossed in order to reach the temple.
Kumbhalgarh fort is a little off track on the route from Jodhpur to Udaipur, but can be covered if planned well in advance.
Kumbhalgarh an abode of the famous warrior Rana Kumbha is located on a mountain amidst mountains that have been cut to form roads. This fort was never captured by any enemy ever. The boundary of this fort is the longest continuous wall in India till date. It is said that this wall can be seen even from space and is the largest after great Wall of China. It also has a Shiv mandir which has an amazing story associated to it.
Ranakpur and Kumbhalgarh will easily take one complete day. So do not plan anything more than these two spots on the same day.
3. Fatehsagar lake-Jodhpur:
You can enjoy the lake view with a 20 mins speed boat ride here which literrally causes adrenalin rush😉.
Also you can do some GHEWAR shopping for your family and friends from Fatehpura Market.
Apart from these cities of you are planning for a longer trip to Rajasthan you should add Jaisalmer to your list. Jaisalmer is the only part of Rajasthan which is covered in desert. There are cottages which can be booked online and you can enjoy a night in the desert.
If your trip is around 7 days you can easily cover
Jaipur->Udaipur->Jodhpur->Jaisalmer in this sequence as only Jaipur is about 500km away from the other cities.