12322DN Mumbai-Howrah Mail (Via Allahabad) Has Change It's Loco Link from Kalyan Wcam-3 Loco To Its Customery Hwh Wap-4. With Effect From 08/06/2015 After AC Fication Of Mumbai CST-Thane Region From 15Kv DC Current To 25Kv AC Traction Current. Now The Train Directly Gets An AC Loco From Mumbai CST. A Great Salute To Central Railways.