Employees' State Insurance (Central) Rules, 1950
37. Production of accounts before the [Comptroller and Auditor General of India]
The annual accounts shall be set out and produced before 21[the Comptroller and Auditor General of India] for scrutiny on or before the fifteenth of June each year following the close of the financial year to which they relate:
PROVIDED that on the application of the Corporation the Central Government may extend the said date by a period not exceeding thirty days.