Q. How to write custom sorting Query SQL Server?

SELECT * FROM
(
 SELECT 'I.Sc.' AS Qualification
 UNION
 SELECT 'B.Sc.' AS Qualification
 UNION
 SELECT 'Other' AS Qualification
 UNION
 SELECT 'P.G.' AS Qualification
 UNION
 SELECT 'MCA' AS Qualification
 UNION
 SELECT 'DCA' AS Qualification
 UNION
 SELECT 'P.H.D' AS Qualification
) AS TBL
ORDER BY CASE WHEN Qualification='Other' 
THEN 'ZZZZZ' ELSE Qualification END