| 16A Prescribed authority for approving any institution or body established for scientific research |
| 16B Prescribed authority for the purposes of clauses (8A) and (8B) of section 10 |
| 16C Requirements for approval of a fund under section 10(23AAA) |
| 16CC Prescribed form of audit report under tenth proviso to section 10(23C) |
| 16D Form of Report for claiming deduction under section 10A |
| 16DD Form of particulars to be furnished along with return of income for claiming deduction under clause (b) of sub-section (1B) of section 10A |
| 16E Form of Report for claiming deduction under section 10B |
| 16F Form of Report for claiming deduction under section 10BA |
| 17 Exercise of option etc under section 11. |
| 17A Application for registration of charitable or religious trusts, etc. |
| 17B Audit report in the case of charitable or religious trusts, etc. |
| 17C Forms or modes of investment or deposits by a charitable or religious trust or institution |
| 17CA Functions of Electoral Trusts |
| 17CB Method of valuation for the purposes of sub-section (2) of section 115TD |
| 17D Prescribed foreign projects for the purposes of deduction in respect of profits and gains from projects outside India under section 80HHB |
| 18 Accommodation and amenities to be provided by hotels. |
| 18A Prescribed authority to certify the daily average number of rehabilitated employees in an industrial undertaking. |
| 18AB. Furnishing of Statement of particulars and certificate |
| 18AA Prescribed authority for approval of a hotel under section 80CC. |
| 18AAA Prescribed authority for approval of a University or any educational institution of national eminence for the purpose of section 80G |
| 18AAAA Prescribed authority for the purpose of receiving separate accounts from trusts or funds or institutions for providing relief to the victims of earthquake in Gujarat |
| 18AAAAA Guidelines for specifying an association or institution for the purposes of notification under clause (c) of sub-section (2) of section 80G |
| 18AAB Prescribed authority for approval of companies engaged in Scientific and Industrial Research and Development for the purposes of section 80-IA |
| 18B Form of audit report for claiming deduction under section 80HH |
| 18BB Form of audit report for claiming deduction under section 80HHA |
| 18BBA Form of reports for claiming deduction under section 80HHB or under section 80HHC or under section 80HHD and prescribed authority under section 80HHD |
| 18BBB Form of audit report for claiming deduction under section 80-I or section 80-IA or section 80-IB |
| 18BBC Prescribed authority for approval of hotels located in certain areas |
| 18BBD Prescribed authority for approval of companies carrying on Scientific and Industrial Research and Development |
| 18BBE Computation of profits of certain activities forming integral part of a highway project for the purpose of section 80-IA |
| 18C Eligibility of Industrial Parks for benefits under section 80-IA (4)(iii) |
| 18D Prescribed authority for approval of companies carrying on scientific research and development |
| 18DA Prescribed conditions for deduction under sub-section (8A) of section 80-IB |
| 18DB Prescribed area, facilities and amenities for multiplex theatres and particulars of audit report, for deduction under sub-section (7A) and clause (da) of sub-section (14) of section 80-IB |
| 18DC Prescribed area, facilities and amenities for convention centres and particulars of audit report, for deduction under sub-section (7B) and clause (aa) of sub-section (14) of section 80-IB |
| 18DD Form of report for claiming deduction under sub-section (11B) of section 80-IB |
| 18DDA Form of report for claiming deduction under sub-section (11C) of section 80-IB |
| 18DE Prescribed area, minimum seating capacity, facilities and amenities for convention centres; minimum number of convention halls in the convention centres; and particulars of audit report, for deduction under section 80-ID |
| 19 Computation of capital employed in an industrial undertaking or a hotel. |
| 19A Computation of capital employed in an industrial undertaking or a ship or the business of a hotel for the purposes of section 80J. |
| 19AB Form of report for claiming deduction under section 80JJAA |
| 19AC Form of certificate to be furnished under sub-section (3) of section 80QQB |
| 19AD Prescribed authority for purposes of sub-section(2) of section 80RRB and form of certificate to be furnished under sub-section(2) of section 80RRB |
| 19AE Form of report of accountant to be furnished under sub-section(3) of section 80LA |
| 20 Guidelines for approval under clause (xix) of sub- section (2) of section 80C or under clause (xvi) of sub-section (2) of section 88 |
| 20A Guidelines for approval under clause (xx) of sub- section (2) of section 80C or under clause (xvii) of sub-section (2) of section 88 |
| 20AB Evidence of payemnt of security transaction tax for claiming deduction under section 88E |
| 21 Limits for life insurance premia in the case of authors, etc. |
| 21A Relief when salary is paid in arrears or in advance, etc. |
| 21AA Furnishing of particulars for claiming relief under section 89(1) |
| 21AB Certificate for claiming relief under an agreement referred to in section 90 and 90A |
| 21AC Furnishing of authorisation and maintenance of documents etc. for the purposes of section 94A. |
| 21AD Exercise of option under sub-section (4) of section 115BA |
| 21AE. Exercise of option under sub-section (5) of section 115BAA |
| 21AF. Exercise of option under sub-section (7) of section 115BAB. |
| 21AG Exercise of option under sub-section (5) of section 115BAC |
| 21AH Exercise of option under sub-section (5) of section 115BAD |
| 21AI Computation of exempt income of specified fund for the purposes of clause (4D) of section 10 |
| 21AJ Determination of income of a specified fund attributable to units held by non-residents under sub-section (1A) of section 115AD |
| 21B Relief when interest on securities is received in arrears. |
| 21AK Conditions for the purpose of clause (4E) of section 10 |
| 21AAA Taxation of income from retirement benefit account maintained in a notified country |
| 21AJA Computation of exempt income of specified fund, attributable to the investment division of an offshore banking unit, for the purposes of clause (4D) of section 10 of the Act |
| 21AJAA Determination of income of a specified fund attributable to the investment division of an |
| 21AIA Other conditions required to be fulfilled by a specified fund referred to in clause (4D) of section |
| 21AL Other Conditions required to be fulfilled by the original fund |
| 17AA Books of account and other documents to be kept and maintained |
| 21AGA Exercise of option under sub-section (6) of section 115BAC |
