Programmatically Adding SharePoint Group and Quick Add Group

Simple way to add a new custom group or custom quick add group programmatically.

Elements File Modification
Add the below 2 lines of code to your elements file under Elements > Module > File

 
<?xml version="1.0" encoding="utf-8" ?>
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
  <Module Name="AltsisWebParts" Url="_catalogs/wp">
    <File Url="Srini.webpart" Type="" >      
       <Property Name="Group" Value="AltsisGroup" />
       <Property Name="QuickAddGroups" Value="AltsisGroup" />
    </File>
  </Module>
</Elements>