It shall be the duty ofthe Authority,-
(i) to.determine whether any reduction in rate of tax on any supply of goods or services or the benefit of the input tax credit has been passed on to the recipient by way ofcommensurate reduction in prices;
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(ii) to identify the registered person who has not passed on the benefit of reduction in rate of tax on supply of goods or services or the benefit ofinput tax credit to the recipient by way of commensurate reduction in prices;
(iii) to order,
(a) reduction in prices;
(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 higher amount till the date of 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 ofthe amount or is not identifiable, and depositing the same in the Fund referred to in section 57;
(c) imposition of penalty as specified in the Act; and
(d) cancellation of registration under the Act.