The incident, which happened during a game between Birmingham City and Middlesbrough at St Andrew's on December 7, was reported to police by a match steward.
A 25-year-old man from Bicton Heath in Shrewsbury was arrested on suspicion of inciting racial hatred on December 21.
He has since been bailed pending further inquiries and banned from attending any football matches or from visiting the St Andrews ground. He must also not visit any city where Middlesbrough FC are playing.
Source: Asian Image