Agar railways Jaipur prayagraj (12404) SF express ka extension sikar tak nhi kar skta toh Kam se kam iska time table toh change kar hi skta h na. Iska time kuch iss tarah hona chahiye:-
12404 - Departure from jaipur - 9.45pm and arrival to Prayagraj - 11am, similarly
12403...
more... - Departure from Prayagraj - 8.pm and arrival to jaipur - 9.15 am.