Must visit Udaipur City Palace ( Almost will.take 4 hr from inside ) then Karni mata ka temple ( Here you need to go by ropeway) , Saheliyon Ki bari ( Evening garden) and then in night go to Lake pichola with some grrat restro near about it. Next day you can go Jagdish temple, Fateh Sagar Lake, Vintage Old Car Museum.
for places in Udaipur
I will guide you daywise
D1: cover Aravali vatika , Pratap smarak , city palace , Jagdish temple, lake pichola enjoy the sunset while in boat, then at night see the cultural show at Bangor ki haveli... D2: cover Fateh Sagar lake , kalagram, Rajiv park, and sjjangarh fort njoy sunset the D3: go to haldi ghati ekling temple
or you can visit Chittorgarh
Hi puja, you can visit my blog on Udaipur, where I have mentioned each and everything in detail with the cost of each fort and roadmap of the same and how to travel within Udaipur. that will be very useful for you as a new traveller to Udaipur. thanks.
You can visit :
1. Lake Pichola
2. City Palace
3. Jagdish temple
4. You can visit Kumbalgarh and chittorgarh Fort; they are around 80 to 100kms from udaipur
5. Fathe Sagar Lake
6. Vintage Old car Museum. Happy Traveling !!!!