Research exemption approval for an institution enables tax-deduction eligibility, conditioned on annual reporting and time-limited validity. Kailas Seva Sadan, Bombay, is approved as an eligible institution for the research exemption under section 35(1)(ii) of the Income-tax Act, limited to research purposes, subject to submission of annual reports and returns about its research activities to the prescribed authority, and effective for two years from the date of notification.