Progress bar xml is as:
<ProgressBar
            android:id="@+id/progressBarCircular"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="200dp"
            android:layout_height="200dp"
            android:layout_alignTop="@id/squareView_3"
            android:layout_toRightOf="@id/squareView_3"
            android:layout_marginTop="-105dp"
            android:layout_marginLeft="40dp"
            android:indeterminate="false"
            android:max="100"
            android:progress="0"
            android:background="@color/BlackText"
            android:progressDrawable="@drawable/circular_progressbar" />  
circular_progressbar.xml is as:
<?xml version="1.0" encoding="UTF-8" ?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:id="@+id/background">
    <shape
            android:innerRadiusRatio="3"
            android:shape="ring"
            android:thicknessRatio="8.0">
        <solid android:color="@color/DarkGrey" />
    </shape>
  </item>
  <item android:id="@+id/progress">
    <shape
            android:innerRadiusRatio="2.5"
            android:shape="ring"
            android:thicknessRatio="12.0">
        <solid android:color="@color/green" />
    </shape>
  </item>
</layer-list>  
and for setting progress:
ProgressBar pb = (ProgressBar)view.FindViewById(Resource.Id.progressBarCircular);
pb.Progress = 75;  
This is not giving me progress bar as shown below, How can I draw progress bar as below image:

Any help will be heartly appreciated. Thankyou, Happy Coding.
 
    