Section 17A(8) in The Rajasthan Value Added Tax Rules, 2006
(8)A dealer, who had opted for payment of tax in lump sum, may opt out of it by submitting an application in Form VAT-71, electronically through the official web-site of the department, in the manner provided therein, to the assessing authority. In such case the dealer shall he liable to pay tax as per sub-section (1) of section 4 from the date he has opted out and for earlier period he shall be required to pay tax in lump sum in accordance with the provisions of section 5.