13165/66,13155/56 or 13043/44 ko merge kar k Kolkata Raxaul Via Dbg Chala sakte the daily
Blgt Exp both side Overnight Tri-weekly
15233/34 & 35/36 ko Merge kar k single train karna chahiye with slot sharing with 13135/36, 13157/58 ,15271/72
BY increasing frequency of 13157/58