No need. Already PRYJ has Ranchi Connection.
Premium Trains, RNC Garib rath, RNC Rajdhani (Via Chopan) stops here.
LTT-RNC, JAT-SBP, JSJ also stops at PRYJ. Aur waise bhi Jharkhand SK ke time slot ke around Kalka Mail, NE, Nandan Kanan, etc nikalti hi he. toh extra train ki zarurat nhi...