Rebate on stamp duty / registration amount

Hi All, I know that rebate on property stamp duty is applicable u/s 80 C(2) xviii. But need to know in below example in which FY year it will be claimed. Eg : In FY 2016-17, I paid charges for stamp duty in Mar'16, but got this registered in FY 2017 18 (Apr'17) . So need to know in which year one can claim benefit. Please guide.