Section 10(23C)(v) charitable exemption: Guru Gobind Singh Foundation notified and granted tax exemption for specified assessment years. Central Government notification under Section 10(23C)(v) notifies Guru Gobind Singh Foundation as entitled to income-tax exemption for the assessment years 1967-68 to 1978-79 and 1981-82, and records that exemption for the intervening assessment years was previously granted by an earlier notification.