kyun,,,,ye section ek high density route hain aur kaafii logon ko dikkatein hotiin hain SDAH/HWH/BDC/BWN/AZ aakar Northbengal ya Northeast ke trains lene mein.Kitne tourists aatein hain.So ye route to patronage bahut hoga.Probably agaar Shatabdi nahi to Jan Shatabdi to pakka hona hi chahiye.Aur waise Kolkata-Dibrugarh Dihing to chalega hi aur isse regular kar de.