1) file complaint with anti corruption Bureau Sir Pochkhanwala Road, Worli, Mumbai.
2)As per para. 6 (i) (ii) and 7 of ACB manual, ACB officers except Mumbai unit collects evidence prior to lodging FIR. In short they starts investigation and completes major portion of investigation even prior to registering F.I.R.
3) in the complaint enclose evidence in your possession regarding employee carrying on business in wife name but all decisions are taken by him