PatelAlpesh, the FORMAT function only exists in SQL Server 2012. The question clearly states that the asker uses SQL Server 2008. Please read the full question and other posts before deciding to post yourself. (this is not the first time)
The answer by sjwales achieves what has been asked.
Anthony Perkins
this is not the first time
And unfortunately it will not be the last, despite repeated reminder over the years.
http://msdn.microsoft.com/en-us/library/ms187928%28v=sql.105%29.aspx
HTH,
Kent