S. 43CA : Transfer of assets-other than capital assets-Full value of consideration-stock in trade-Agreement value-Stamp valuation-First proviso to section 43CA inserted by Finance Act, 2020 with effect from 1-4-2021 is applicable retrospectively-Difference recorded between sale value of flats sold by assessee and stamp value of such flats was within 10 per cent margin-Addition is deleted. [S.50C]