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ASSISTANT COMMISSIONER OF INCOME TAX (INTERNATIONAL TAXATION) & OTHERS versus SHELF DRILLING RON TAPPMEYER LTD. ETC.

Citation: [2025] 8 S.C.R. 1574 · Decided: 08-08-2025 · Supreme Court of India · Bench: B.V. NAGARATHNA

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Judgment (excerpt)

[2025] 8 S.C.R. 1574 : 2025 INSC 946
Assistant Commissioner of Income Tax 
(International Taxation) & Others 
v. 
Shelf Drilling Ron Tappmeyer Ltd. Etc.
(Civil Appeal No(s). 10586-10589 of 2025)
08 August 2025
[B.V. Nagarathna* and Satish Chandra Sharma,* JJ.]
Issue for Consideration
The present matter raised important questions of law relating to 
interpretation and interplay between Section 144C and Section 
153(3) of the Income Tax Act, 1961. The question for consideration 
was on the applicability of Section 153 to a proceeding under 
Section 144C namely, whether the period of eleven months as 
envisaged under Section 144C should be over and above the 
limitation period prescribed, particularly, under Section 153(1) or (3), 
as the case may be. In other words, whether the time consumed 
for concluding the proceeding under Section 144C has to be 
subsumed within the limitation prescribed under Section 153(1) 
or (3) or as the case may be.
Headnotes†
Income Tax Act, 1961 – ss.144C and 153(3) – Limitation 
periods and procedures prescribed in these two sections – 
Interpretation and interplay between s.144C and s.153(3) – 
Whether time consumed for concluding the proceeding 
u/s.144C has to be subsumed within the limitation prescribed 
u/s.153(1) or (3) or as the case may be. 
Held [Per Satish Chandra Sharma, J.]:
1. In interpreting the provisions that form the subject matter of 
the present controversy, a fine balance has to be maintained 
between ensuring that the revenue authorities have ample time and 
opportunity to assess income and ensure that those who attempt 
tax evasion, are prosecuted, and the income escaping taxation, 
is brought within the tax fold – At the same time, the rights of the 
Assessees, of not having their returns scrutinized after a substantial 
* Author
Ed. Note: Hon’ble Mrs. Justice B.V. Nagarathna and Hon’ble Mr. Justice Satish Chandra Sharma pronounced 
separate judgments.
[2025] 8 S.C.R. 
1575
Assistant Commissioner of Income Tax (International Taxation) 
& Others v. Shelf Drilling Ron Tappmeyer Ltd. Etc.
period of time, must also be balanced – If the entire procedure 
prescribed and contemplated in terms of Section 144C of the 
Income Tax Act must be subsumed within the overall time period 
prescribed under Section 153 of the Income Tax Act, it would result 
in a complete catastrophe for recovering lost tax – The time period 
within which the Assessing Officers would have to pass orders 
would be negligible – This would be totally unworkable – Section 
153 in its operation does not distinguish between persons who 
are suffering assessment under Section 144C of the Income Tax 
Act or otherwise. [Paras 30, 31, 32, 33]
2. The High Courts of Bombay and Madras have taken the view 
that the fact that no exception has been carved out for Section 
144C of the Income Tax Act in any of the sub-sections of Section 
153 of the Income Tax Act makes it clear that the time of Section 
144C of the Income Tax Act proceedings must necessarily conclude 
within the time period prescribed under Section 153 of the Income 
Tax Act – This view can be agreed upon only to a limited extent, 
insofar as the timelines prescribed under Section 153 of the Income 
Tax Act must apply to proceedings under Section 144C of the 
Income Tax Act, but only insofar as they relate to the passing of 
the Draft Assessment Order contemplated under Sub-Section (1) 
of Section 144C of the Income Tax Act. [Para 35]
3. Sub-Section (4) and Sub-Section (13) of Section 144C of the 
Income Tax Act provide clear and unequivocal non obstante clauses, 
which remove the application of Section 153 of the Income Tax 
Act and the timelines prescribed thereunder – No doubt Sub-
Section (4) and Sub-Section (13) of Section 144C of the Income 
Tax Act prescribe very specific timelines for the Assessing Officer 
to complete and pass the Final Assessment Order, but these 
timelines are independent of the timelines contemplated in Section 
153 of the Income Tax Act, and operate in addition to the timelines 
contemplated in Section 153 of the Income Tax Act. [Paras 36, 37]
4. The requirements of Section 153 of the Income Tax Act in 
terms of timeline are strictly applicable to Section 144C (1) of the 
Income Tax Act, that is the stage at which the Draft Order has to 
be passed by the Assessing Officer – The non-obstante clauses 
contained in Sub-Section (4) and Sub-Section (13) of Section 144C 
of the Income Tax Act only extend the timeline for the 

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