ISLAMABAD: The National Highway Authority (NHA) has planned to upgrade and dualize, the section of Karakoram Highway (N-35) from Jari Kas Interchange of Hazara Motorway (E-35) to Hairpur City. An official of NHA told on Monday that presently this section was a single carriage way. He said that PC-II for feasibility study and detailed design for dualization and rehabilitation of existing carriageway from Hassanabdal to Mansehra (N-35) has been prepared and sent to DDWP for approval. The official said that after approval of PC-II, a consultant will be engaged to conduct feasibility study and detailed design, which will take five to six months time. After finalization of feasibility study and detailed design, he said PC-I will be presented to CDWP/ECNEC for approval. After approval of PC-I from competent forum and allocation of funds in Public Sector Development Programme and then procurement of the project will commence.