Notification of charitable exemption grants T. T. Ranganathan Clinical Research Foundation status for specified assessment years. The Central Government notifies T. T. Ranganathan Clinical Research Foundation, Madras, under sub-clause (iv) of clause (23C) of section 10 of the Income-tax Act, 1961, thereby recognizing the Foundation as qualifying for the exemption set out in that provision and specifying the assessment years to which this recognition applies.