urgent AS 9

Our Organisation in Business of Supply Chain Management of Agricultural Commodities.We are Purchasing the commodities on behalf of Client but title of goods with us till the date of delivery.We have charging interest @ 12% on Cost of Purchase of goods from client for diffrence in Date of Purchase to Date of Dispatch(i.e Sale/Transfer).Should we recongnise interest income for Unsettled transaction i.e Closing Stock of Purchase lying with us for our Sixmonthly Closing of Bookes of Account.Please clarify above issue using relevent Accounting Standard with examles.