S. 69A : Unexplained money-Cash deposited-Demonetization period-Gifts received in connection with marriage-NRI-Failure to substantiate the gift-Relief of Rs.50,0000 is granted-Provisions of section 115BBE as amended by Taxation Laws (Second Amendment) Act, 2016 will apply with effect from 1-4-2017 on enhanced rate of 60 per cent instead of rate of 30 per cent. [S,115BBE]