(5)Where, in case of audit of a company being conducted by an audit firm, it is proved that the partner or partners of the audit firm has or have acted in a fraudulent manner or abetted or colluded in any fraud by, or in relation to or by, the company or its directors or officers, the liability, whether civil or criminal as provided in this Act or in any other law for the time being in force, for such act shall be of the partner or partners concerned of the audit firm and of the firm jointly and severally.