Every retailer registered under this Act whose gross turnover does not exceed rupees fifty lakhs and every registered dealer of any specific class or category as the Government may by notification, direct, shall pay, in such manner and subject to such conditions and restrictions as may be prescribed, in lieu of the tax payable under section 11, a turnover tax at such percentage of the taxable turnover as the Government may, by notification, specify, in addition to the tax payable on the taxable turnover of purchases under section 12:

Provided that any such retailer or dealer may, by exercising option in the prescribed manner, elect to pay tax as specified under section 11 in lieu of the turnover tax.

Provided further that no turnover tax shall be payable on turnover of sales of declared goods purchased from a registered dealer on which tax has been paid:

Provided also that no turnover tax shall be payable on turnover of sales of goods purchased within the State on which tax on MRP has been paid.