only thing that comes b/w Siliguri WDG-4 & Patiala FCI rake is the massive obstruction by ECR...all the food grains loaded rake from Punjab to various parts of North East usually follows the SRE-MB-LKO-GKP-MFP-KIR route(as DNR-PNBE-BJU route is not fit for goods service)..but lack of infrastructure @ SEE division abnormally delays the trains & causes massive detention of wagons.As a result,a wagon after unloading wheat @ FCI,Dimapur should normally return PTA within 8 working days,taking 10-13 days for return.