Tax on certain dividends: applicability narrowed to dividends declared before the cut off; trusts registered under section 12AB excluded. Amendment limits the dividend taxation provision's applicability to dividends declared, distributed or paid by domestic companies on or before the cut off date, effective for the stated assessment year, and broadens the exclusion from the definition of specified assessee to include trusts and institutions registered under the updated registration provision, effective from the separate commencement date.