Section 17A(9)(i) in The Rajasthan Value Added Tax Rules, 2006
(i)that such dealer shall not charge or collect any tax from a purchaser on the sale of goods for which he has opted for payment of tax in lump sum in accordance with the provisions of section 5, however, tax charged or collected by the dealer shall have to be deposited forthwith and the tax already deposited shall not be refunded.