Highway No N-50 having a length of 531 km is a major highway linking Quetta, Capital of the State of Baluchistan to the State of Punjab in the north and further to Islamabad. Quila Saifullah – Zhob slice (ICB-3B) of this road is 150 km and built by the Joint Venture of Limak and ZKB JV. The dual carriageway road has a total width of 12,3 m.

The commencement date of the Project funded by a loan from the Asian Development Bank, for which the ground breaking ceremony was attended by His Excellency, Asif Ali Zardari, President of Pakistan, was March 9, 2010.