Road building is easiest thing in the world, the difficult part is how much was payed under the table to get the contracts, how much was occupied by officers.
How much people have to pay for driving on it.
BTW, Golden Quadrilateral High Way(GQ) also became a Indian flag. India able to built 15 miles a day.
acha kaam, bahuth acha,Indian.
India has longest road in the world(many are dirt tracks) , the worst is Chinese unable to get the contracts,no even a millimeter. Japnese , Korean are making tons of money.