I think one needs to stay atleast for a week to travel aroung the udaipur . for a stay of four days, one is able to see only few of the main attractions.
need anyhelp regarding udaipur
HungryBags Guide of travelers about Tourist Places Rajasthan also includes the must cherished tour that is tour of Udaipur. Here you can see places like:
Lake Palace, Jag Mandir, Bharatiya Lok Kala Mandir, Maharana Pratap Memorial, Udaipur Solar Observatory, Ambika Mata Temple and much more.