Heavy transport movement of troops and equipment is done by Pakistan Railways. For this, there is dedicated rolling stock that include troop transport railway cars, flatbed carriages for Armored vehicles, and Cargo wagons.
I believe some of our defense budget is spent on upkeep of railway sidings, and special rail spurs into cantonments. Furthermore, some money is also spent upon upkeep of rolling stock too.
There is a definitive lack of heavy duty railway engines. This is where we should be spending money and on overhaul of track and strengthening of railway and secondary road bridges. This one element alone precludes us to buy heavier Tanks!
