(1) Within twenty-one days of the expiry of each month, or quarter of a year, as the case may be, every registered dealer shall furnish to the assessing authority a return in Form I showing particulars in respect of -

(a) sales tax payable by him for that month or quarter, as the case may be, on the sales effected by him in the course of inter-State trade or commerce ; and

(b) transactions made under sections 3,5,6,6A and 8 of the Act during the month or quarter, as the case may be, to which such transactions relate:

Provided that the Commissioner may, for reasons to be recorded in writing, specify by notification, a different period in respect of any dealer or class or classes of dealers to furnish return:

Provided further that the Commissioner may, by notification, exempt, under such circumstances and subject to such conditions and restrictions as may be specified in that notification, any class of dealers from filing return.

(2) If a registered dealer having furnished a return under sub-rule (1) discovers any omission or error in the return so furnished, he may file a revised return in Form I before the date on which the return for next quarter, or month, as the case may be, becomes due and if any differential tax becomes due as per such revised return, he shall pay such tax alongwith interest due under rule 8 and furnish proof of payment thereof within the time stipulated in this sub-rule.

(3)(a) The return under sub-rule (1) or (2) shall be accompanied by a receipt from the Government Treasury as specified in rule 24 of these rules or a crossed demand draft drawn on any scheduled bank or a banker' cheque issued by a scheduled bank in favour of the Sales Tax Officer or Assistant Commissioner, as the case may be, for the full amount of tax payable alongwith interest, if any, as per the return.

(b) Where a registered dealer furnishes a return under sub-rule (1) or (2) without the proof of payment of tax alongwith interest, if any, as specified in clause (a), a notice in Form II shall be served upon such dealer for payment of the tax due as per the return furnished and the registered dealer shall pay the amount of tax defaulted alongwith interest, if any, within the time specified in the notice issued.

(c) Where, in case of a dealer registered under this Act and the Orissa Value Added Tax Act, 2004, the input tax credit under the Orissa Value Added Tax Act, 2004 in respect of a month or quarter, as the case may be, exceeds his tax liability under the said Act for that period, the excess input tax credit shall be set off against the tax payable under this Act and these rules in the return for the same month or quarter, as the case may be.