Yes its the best time to visit Rajasthan. Places to visit Rajasthan depends on your interest If you want to visit Palace and Havellis go Jaipur Udaipur or Bikaner If you would like to see the real Rajasthan visit villages like Nathdwara or Bishnoi If you love camels and sand go Jaisalmer. 3 days are very less for Rajasthan so plan smartly
Three days!!!!!!
too less to think of Rajasthan, please do try for one city. Any city will do, my suggestion will be Jaisalmer. Reach Jaisalmer and check in at any good hotels there, go out and enjoy the golden city. A war museum has come up like 5-10 kms before jaisalmer. Look out for the forts and their local cuisines. Next day go to longewala and Tanot mata mandir and while returning stay at SAM (Sandunes). You have to spend a night here, the festiival will get over after march so you have to cash in. Enjoy the camel safari, sand safari and night music. Next day while going back to Jasailmer visit the so called haunted village " Kuldhara". The trip is over. :)
Please feel free to ask anything more.
I was im Udaipur for 14,15,16 feb it was quite hot during day time by then. So it will be more than that in march. You mist visit rajasthan from dec-feb