In this Act, unless there is anything repugnant in the subject or context

(ag). "tax" means a tax leviable under this Act, on the sale or purchase or both, as the case may be, of goods other than news paper; and shall include,-

(i) Composition money either at an agreed rate or in lump sum, as the case may be, payable, in lieu of actual amount of tax due on turnover of sales or purchases or both, as the case may be, in accordance with provisions of section 6 or section 6A".

(ii) amount of reverse input tax credit.

(iii) the amount of additional tax leviable under section 3-A.

(iv) the amount of cess leviable under section 3-B.