The update/ fix from Microsoft referred to above by me is the same as provided by you, i.e.
http://support.microsoft.com/kb/2496898
One has to apply this Hotfix/ Update and then type Ctrl + Alt + 4 OR 20B9 followed by Alt-X. This will make Rupee Font visible in the document in the same font, i.e. Times New Roman, Arial etc.
However, the method recommended above is not working in Notepad.
Is there any method available which can enable us to type Rupee symbol in Notepad using common Windows Fonts like Arial, Times New Roman.