Go for pushkar one day before the holi celebration and make sure to pre-book your stay as the demand is always so high at that time in pushkar, hotel prices normally raises around 3 to 4 times the price in ordinary days,for any assistance you can contact me on msoni64041@gmail.com. Hope this will help you. Have a good day.
If Udaipur is your second hometown then you can go for Mathura or Pushkar.. personally I wud recommend going to Mathura. as it is a lifetime experience to experience holi there. please do all the bookings beforehand that will make your stay much comfortable
Pushkar would be great brother , mixup of different people, that will make you satisfied about your choice, I've been in fest so I know how crazy it could be ,with trippy lassie, and DJ of outbound