I want to travel from Udaipur (UDZ) to Mandsor(MDS) in a chain... via chanderiya (CNA). UDZ to CNA in 09722 and from CNA in 19654. Can I book a PRS ticket with second ticket of value zero? Now only common class in both trains is 3AC. I dont want to travel in 3AC. Can I get CC and then SL in open ticket?