It's not costly. The increased costs is due to the result of that Haramkor who was unfortunately our first PM. If Congress bastards ever focused on Urban planning then we wouldn't have to build metro lines on elevated tracks. Building all that piers which requires enormous amounts of steel, cement and construction materials is the reason metro lines are expensive. If the roads were mandated to be 6 lanes in both directions 50-60 years ago then we could have simply built and fenced the tracks in the middle and ran our metro trains which wouldn't have taken more than a year to build metro connectivity to every part of the city. Or we could have also simply made every track line run underground.
View attachment 186848