The Polavaram project, which is considered as one of the important projects of Andhra Pradesh has achieved a milestone on Monday i.e on June 11th. The Chief Minister N Chandrababu Naidu has inaugurated the diaphragm wall pylon at the Polavaram irrigation project in West Godavari district. The chief minister has reviewed the progress of work and termed the project as a lifeline of Andhra Pradesh. The diaphragm wall is made with the use of latest German technology. The prestigious project has been accorded national project status.