Panipat would be a very bad idea !! not too many pax for 12011/12 Kalka Shatabdi from PNP. Most of the time it witnesses zero boarding and de-boarding !!
on the other hand Karnal is a hit stop considering 12045/46 , have witnessed 20 - 30 pax boarding / de boarding from this station on an average. it has more patronage for Delhi-Karnal-Delhi Pax !!!