(1) Subject to sub-sections (2) to (4), every registered dealer, and the Central Government, a State Government, a statutory body and a local authority liable to pay tax collected under sub-section (2) of Section 9, shall furnish a return in such form and manner, including electronic methods, and shall pay the tax due on such return within twenty days after the end of the preceding month or any other tax period as may be prescribed.
(2) The tax on any sale or purchase of goods declared in a return furnished shall become payable at the expiry of the period specified in sub-section (1) without requiring issue of a notice for payment of such tax.
(3) Subject to such terms and conditions as may be specified, the prescribed authority may require any registered dealer.-
(a) To furnish a return for such periods, or
(b) To furnish separate branch returns where the registered dealer has more than one place of business.
(4) If any dealer having furnished a return under this Act, other than a return furnished under sub-section (3) of Section 38, discovers any omission or incorrect statement therein, other than as a result of an inspection or receipt of any other information or evidence by the prescribed authority, he shall furnish a revised return within six months from the end of the relevant tax period except when such revised return is on issue of a debit note under Section 30, subject to sub-section (2) of Section 72.