S. 263 : Commissioner-Revision of orders prejudicial to revenue-Real estate developer-Annual value-Deemed rent-Unsold flats as stock-in-trade for more than one year-Revision is not justified-Amendment to section 23 vide introduction of sub-section (5) by Finance Act, 2017 with effect from 1-4-2018 whereby property held as stock-in-trade was brought to tax, would be effective prospectively.[S. 22, 23]