Karnataka SK is only for KN....
Sampark don't even have halts in other states (RLWL quota)
1. via Hubli....for tumkur, davangiri, birur ,dharwad,
belgavi
2. Via kachiguda....for ...
more... dharmavaram, anantpur,
guntakal, raichur, gadwal, kurnool city
The above two SK Exp don't even have halt at Mathura, Agra, Gwalior, Bina, Itarsi, daund, jalgaon, ahmednagar, satara.