Technically speaking,
No statue whatsoever, does'nt stop anyone to call himself auditor or represent himself as auditor, for since there is no stipulations. But, the problem engross us when we say "Statutory Auditor".
You might have noticed that even Acts like Co.Act, I Tax, Local Sales Tax Act speaks:
TO BE AUDITED BY AN ACCOUNTANT WITHIN THE ,MEANING OF ....... OF 19XX(XX OF XXXX) ETC.
I was amazed during interaction with Phone/Service provider cos. like Reliance comm. or Bharti Airtel that they have Technical auditors who audits airtime, techical specifications and recharge vouchers tequie stuffs which has nothing to do with what we (i mean the traditional accountants etc.) as AUDIT.
Cheers