It's wrong Every Train Towards APDJ after NJP Must touch SGUJ. AlipurDuar Junction And NEw alipurduar are in same town but in diferent Routes.
Route 1- New Jalpaiguri-Raninagar-New Coochbehar-New Alipurduar-.....-Guwahati
Route 2- New Jalpaiguri-Siliguri-Junction- New Mal junction-Alipurduar junction-.......-Guwahati
.... means Many routes! But two routes mee At Shamuktala