Complex sentence: It will be constructed after the completion of the M-4 Motorway.And the M-6 is a planned 4 lane motorway that will link Dera Ghazi Khan with Ratodero.
Split into simpler sentences: It will be constructed after the completion of the M-4 Motorway. The M-6 is a planned four-lane motorway that will link Dera Ghazi Khan with Ratodero.