Word Style Headings Settings vb.net

I am writing code to set headings according to client requirement.

Desired//
Heading 1:
Font: (Default) Arial, 15 pt
Paragraph
  Spacing:
  Before: 8 pt
Outline Level: Level 1
Tabs:
Tab stops: 1.27 cm, List tab
Bullets and Numbering
List: Outline numbered
Level: 1
Numbering Style: 1,2,3,..
Start at:1
Alignment:Left
Aligned at:0 cm
Tab after: 1.27 cm
Indent at: 0 cm
Style
Style Linked, Quick Style
Based on: Normal

Achieved//
Heading 1:
Font: (Default) Arial, 15 pt
Paragraph
   Indentation:
   Left:0.25
   Hanging: 0.25
   Spacing:
   Before: 8 pt
   After: 0 pt
   Line and Page Breaks: Keep with next, Keep lines together
Outline Level: Level 1
Tabs:
Tab stops: 1.27 cm, Centered
Bullets and Numbering
List: Numbered
Level: 1
Numbering Style: 1,2,3,..
Start at:1
Alignment:Left
Aligned at:0.25"
Indent at:0.5"
Style
Style Linked, Quick Style, Priority:10
Based on: Normal
Following style:Normal

using <code>

 With oWord.ListGalleries(word.WdListGalleryType.wdOutlineNumberGallery).ListTemplates(1).ListLevels(1)
            .Alignment = word.WdListLevelAlignment.wdListLevelAlignLeft
            .StartAt = 1
            .NumberStyle = word.WdListNumberStyle.wdListNumberStyleArabic1

        End With

        Dim oTemplate1 As word.ListTemplate = oWord.ListGalleries.Item(word.WdListGalleryType.wdNumberGallery).ListTemplates.Item(1)



        With oDoc.Styles(word.WdBuiltinStyle.wdStyleHeading1)
            .Font.Bold = False

            .Font.Size = 15
            .Font.Name = "Arial"
            .Font.ColorIndex = word.WdColorIndex.wdAuto
            '.NameLocal = "Heading1"
            .ParagraphFormat.SpaceBefore = 6

            .ParagraphFormat.LeftIndent = False
            .ParagraphFormat.RightIndent = False

            .ParagraphFormat.OutlineLevel = word.WdOutlineLevel.wdOutlineLevel1
            .ParagraphFormat.Alignment = word.WdParagraphAlignment.wdAlignParagraphJustify

            With .ParagraphFormat.TabStops
                .Add(Position:=oWord.CentimetersToPoints(1.27), Alignment:=word.WdAlignmentTabAlignment.wdLeft)
            End With
            .ParagraphFormat.KeepWithNext = True
            .NextParagraphStyle = word.WdBuiltinStyle.wdStyleHeading1
            .QuickStyle = True
            .LinkToListTemplate(oTemplate1)


        End With

</code>

Now the difference

fol are added not required (how to turn them off or null)

1- Paragraph, Indentation: Left:0.25, Hanging: 0.25

2- Line and Page Breaks: Keep with next, Keep lines together

3- Tab stops: 1.27 cm, Centered (instead of List tab)

4- Bullets and Numbering List: Numbered (instead of Outline numbered)

5- Aligned at:0.25" (it should be zero i am not setting it anywhere)

6- Indent at:0.5" (it should be zero how to)

Please advice how to solve mentioned issues.