Tax exemption notification under section 10(23C)(v) notifies Guru Nanak Foundation for assessment years 1979 80 to 1983 84. The Central Government, under clause (v) of sub section (23C) of section 10 of the Income tax Act, notifies Guru Nanak Foundation as eligible under that provision for the assessment years 1979 80 to 1983 84 by Notification No. S.O.2443 dated 11 8 1981.