Exemption under section 10(23C)(iv): income received on behalf of the association excluded from recipient's taxable income subject to conditions. Income received by any person on behalf of Indian Association of Parliamentarians on Population and Development, New Delhi is not includible in that person's total income for the specified assessment years under section 10(23C)(iv), provided the institution applies or properly accumulates income for its objects (with limited accumulation over fifteen per cent and a maximum five-year excess period), confines investments to authorised forms, limits business income to incidental activities with separate accounts, files returns regularly, and transfers surplus assets on dissolution to a like-minded organisation.