Why? following line duplicated add inline condition if you requir.
@current_address = @user.personal_profile.build_current_address unless @user.personal_profile.current_address?
@permanent_address= @user.personal_profile.build_permanent_address unless @user.personal_profile.permanent_address?
@current_address = @user.personal_profile.current_address
@permanent_address = @user.personal_profile.permanent_address