Vapi is in fact a permanent halt for 19018 Sau Jan Express. PFA copy of Page 112 July 2013 Western Zone Timetable as supporting evidence.
I hope Sparsh would agree that Western Zone Timetable is also acceptable as proof of commercial halt as indianrail.gov.in!....(btw the same page does not show Boisar as a halt for Kutch Express)
I kindly request Admin to update the halt.