How a browser is able to pesent unreadable code in right way

I met a problem when i try to get the content of following link: http://ift.tt/2vdlJwo &city=Rajkot the content is written in Gujarati ,and it can be presented rightly in browser,but when you try to copy content or see it in the source Html code,you will find that the content is actually unreadable codes. So how browser is able represent it?How a browser is able to pesent unreadable code in right way