They are re-laying the entire track of ML-1 with brand new track bed, ballast , realigned curves & gradients, all new bridges over rivers, canals, and water channel, hundreds of new culverts, cattle creeps, and crossing since track will be separating the territory like motorway without any possibility of crossing over it.
Track is going be significantly higher than the ground level. It will have a concrete fencing on both sides throughout the length. Brand new new real time monitoring, signaling and communication system.
They are rebuilding brand new ML-1 that will have nothing of legacy system left in it after completion.
Additional line from Karachi to Kotri was originally part of the project but they dropped it to reduce the cost.