I noted context of your question (i.e. what would be implications on Section 17[5][d] in terms of recent judgement of Hon'ble Supreme Court in Safari Retreat case?)
So, my views below is in the context of said SC ruling:
I have also noted following explanation given under Section 17(5)(d) (i.e. Explanation.––For the purposes of clauses (c) and (d), the expression “construction” includes re-construction, renovation, additions or alterations or repairs, to the extent of capitalisation, to the said immovable property;)
As you rightly noted, Section 16[3] of the CGST Act reads as under:
(3) Where the registered person has claimed depreciation on the tax component of the cost of capital goods and plant and machinery under the provisions of the Income-tax Act, 1961 (43 of 1961), the input tax credit on the said tax component shall not be allowed.
As can be seen from above, restriction of u/s 16(3) is limited to 'Capital goods and plant and machinery'.
Supreme Court in Safari Retreat case has already ruled that "plant and machinery" as per explanation given is different from "Plant or Machinery". So, "plant and machinery” used u/s 16(3) does not cover "Plant or Machinery" (i.e. those passing functionality test) on which ITC is allowed by SC in Safari Retreat case
BUT, section 2(19) defines “capital goods” means goods, the value of which is capitalised in the books of account of the person claiming the input tax credit and which are used or intended to be used in the course or furtherance of business;
Thus, restrictions u/s 16(3) will apply for ANY goods the value of which is capitalised by the taxpayer in its books of accounts AND which are used or intended to be used in the course or furtherance of business
BUT, as per Section 2(51), “goods” means every kind of movable property other than money and securities but includes actionable claim, growing crops, grass and things attached to or forming part of the land which are agreed to be severed before supply or under a contract of supply;.
Thus, capital goods has to be 'goods' first and hence, they should be movable.
And, if any goods are procured & used in construction of immovable property (which is either plant or machinery), depreciation will be claimed by the tax-payer on 'Immovable property' so constructed and not against 'goods i.e. movable property' used in construction of such immovable property.
Moreover, once goods are used for construction & immovable property comes into existences, such goods are already used as intended tax-payer in the course or furtherance of business without capitalisation of 'goods' per se by the tax-payer.
And capitalisation & there-after depreciation under Income Tax Act (i.e. that of immovable property so constructed & NOT against goods used for construction per se) can happen only after such immovable property is used by the tax-payer for his business. Hence, such goods cannot be called as ‘capital goods’ u/s 2(51).
So, it can be very well argued that the restrictions u/s 16(3) will not apply for above situation where an immovable property is constructed which falls as "Plant or Machinery" (i.e. those passing functionality test) on which ITC is allowed by SC in Safari Retreat case
P.S. This is likely an aggressive view and same should be used only for defending past conduct if absolutely necessary. But, for the tax-payer availing ITC using Safari Retreat ruling, it is better to avoid taking depreciation against ITC portion against goods used for construction of immovable property.
Also, if a taxpayer is using M/s Bharti Airtel Ltd., 2024 (11) TMI 1042 - SUPREME COURT) and claiming property so constructed as ‘movable property’ (here, I am not talking about immovable property like shopping mall), then, above arguments cannot be used.
These are ex facie views of mine and the same should not be construed as professional advice / suggestion or recommendation.