what i meant is diff bro!!!
I dnt know either this spl is running on 17th from vskp,if it is running on 17th then defnetly it would start from SBC on 16th,so beter if SWR change its schedule to 17th from SBC and 18th rom VSKP
If this train is not running on any of dates 17th or 18th then you can ask for a trains in such a way reaching SBC 18th