Section 127(b) in Rajasthan Goods and Services Tax Rules, 2017
(b)return to the recipient, an amount equivalent to the amount not passed on by way of commensurate reduction in prices along with interest at the rate of eighteen per cent. from the date of collection of the higher amount till the date of the return of such amount or recovery of the amount not returned, as the case may be, in case the eligible person does not claim return of the amount or is not identifiable, and depositing the same in the Fund referred to in section 57;