magadh exp get lhb decided by RB-railway board not by SER because starts train no. with 2 control rake by RB if train like this starting no.2. Only 18623/4 decided by SER not for magadh exp. So jab tak RB nahi chahega tab tak lhb milna mushkil . Isliye iska no change hua tha taki RB control karta hai . Agar ser ne 18623/4 lhb diya to magadh exp ko phayda ya rsa hatega ye mujhe nahi pata . Yah sab pata bahut maine bahut muskil lagaya hai.