New Delhi (ABC Live): Over the last decade, India’s international tax regime has faced growing criticism for uncertainty. In particular, aggressive readings of indirect transfer rules and GAAR created concern among foreign investors about retrospective exposure.

Against this backdrop, the Supreme Court’s ruling in Authority for Advance Rulings (Income Tax) v. Tiger Global International Holdings (15 January 2026) assumes critical importance. Importantly, the Court made one principle clear at the outset: treaty certainty is a binding international obligation, not a discretionary policy choice.

Moreover, the Court’s insistence on institutional discipline and jurisdictional restraint aligns with its wider jurisprudence across regulatory domains. For instance, ABC Live previously explained how the Court draws limits when special statutes override general forums
(When IBC Overrides Consumer Law – https://abclive.in/2026/01/13/explained-when-ibc-overrides-consumer-law/).

Facts of the Case: How the Dispute Arose

The respondents—Tiger Global International II, III, and IV Holdings—are investment holding companies incorporated in Mauritius. Each entity holds a Category I Global Business Licence (GBL-I) and operates under the supervision of Mauritian regulatory authorities. In addition, the companies maintain offices, employees, audited accounts, and active boards in Mauritius. Crucially, each entity possesses a valid Tax Residency Certificate (TRC) issued by the Mauritius Revenue Authority.

Between 2011 and 2015, these entities acquired shares in Flipkart Private Limited (Singapore). Although Flipkart was incorporated in Singapore, its value flowed largely from Indian operating companies. Significantly, all acquisitions took place before 1 April 2017.

Subsequently, in 2018, Walmart Inc. acquired Flipkart through a global transaction. As part of this deal, the Tiger Global entities sold their Singapore shares to Fit Holdings S.à r.l. (Luxembourg). The sale generated substantial capital gains and constituted an indirect transfer because the underlying value lay in India.

Revenue Action and the AAR Proceedings

Before closing the transaction, the assessees applied under Section 197 of the Income Tax Act, 1961, seeking a nil withholding tax. They argued that Article 13(3A) of the India–Mauritius DTAA exempted the gains due to grandfathering.

However, the Revenue rejected this claim. Instead, it imposed a withholding tax and alleged that the investment structure lacked substance and aimed to avoid tax.

To resolve uncertainty, the assessees approached the Authority for Advance Rulings (AAR). Yet, in March 2020, the AAR declined to entertain the applications. It invoked the bar under Section 245R(2) and held that the transaction appeared prima facie designed for tax avoidance.

At the same time, the AAR delivered detailed findings on control, beneficial ownership, and treaty abuse. This contradiction later proved decisive.

High Court Intervention and Supreme Court Appeal

The Delhi High Court set aside the AAR’s order. It held that the AAR crossed its statutory limits by deciding merits while rejecting jurisdiction. Moreover, the High Court found that:

• Valid TRCs could not be ignored on speculative “head and brain” theories;

• The assessees demonstrated commercial substance.

• Article 13(3A) expressly grandfathered the gains; and

• GAAR could not override treaty protection retrospectively.

Dissatisfied, the Revenue appealed to the Supreme Court.

What the Supreme Court Held

1. AAR Exceeded Its Jurisdiction

First, the Supreme Court held that the AAR misused its threshold power. The law permits rejection only when tax avoidance is prima facie evident. However, the AAR went further. It delivered final findings while refusing to rule on the merits. As a result, it collapsed the line between jurisdiction and adjudication. The Court found this approach legally impermissible.

2. TRCs and Treaty Federalism Prevail

Next, the Court reaffirmed that tax residency under a DTAA depends on the residence State. Once Mauritius issued valid TRCs, Indian authorities could not re-examine Mauritian law or apply unilateral control tests. Consequently, treaty comity barred such re-characterisation.

3. Treaty Shopping Is Not Abuse

The Court then clarified an important distinction. While treaty abuse warrants denial of benefits, treaty shopping alone does not. Structuring investments through Mauritius remains lawful unless the Revenue proves fraud, sham, or total absence of substance. Therefore, tax efficiency by itself cannot defeat treaty protection.

4. Grandfathering Covers Indirect Transfers

Importantly, the Court rejected the Revenue’s narrow reading of Article 13(3A). It held that grandfathering applies to all shares acquired before 1 April 2017, regardless of whether the exit is direct or indirect. Otherwise, the clause would lose all meaning.

5. GAAR Cannot Act as a Backdoor Override

Finally, the Court ruled that GAAR and Rule 10U cannot undo treaty grandfathering. Domestic anti-avoidance rules cannot retrospectively cancel express treaty assurances. Accordingly, GAAR operates prospectively and within clear limits.

India–Mauritius DTAA: The Legal Backbone

The India–Mauritius Double Taxation Avoidance Agreement, signed in 1982 and amended in 2016, shifted India to source-based taxation only for shares acquired on or after 1 April 2017. At the same time, both States deliberately protected earlier investments.

Through this judgment, the Supreme Court confirmed that grandfathering is substantive, not symbolic.

Primary Treaty Source

India–Mauritius Double Taxation Avoidance Agreement (DTAA)
Official bilateral treaty governing residence, capital gains, and grandfathering.

🔗 https://www.mea.gov.in/Portal/LegalTreatiesDoc/MU24B4377.pdf

Comparative Box: Vodafone vs Tiger Global vs GAAR

DSLA Expert Comment

“This ruling restores a core principle of international tax law. Once a sovereign State grants treaty protection and expressly safeguards past investments, authorities cannot undo that promise through suspicion or hindsight. The judgment draws a firm constitutional line between enforcement and overreach.”

— Dinesh Singh Rawat, Advocate
Managing Partner, Dinesh Singh Law Associates (DSLA)

Supreme Court Judgment (Primary Source)

Judgment dated 15 January 2026
🔗 https://api.sci.gov.in/supremecourt/2025/1251/1251_2025_7_1501_67552_Judgement_15-Jan-2026.pdf

How We Verified This

First, we examined the full Supreme Court judgment (2026 INSC 60). Next, we cross-checked the reasoning with Azadi Bachao Andolan and Vodafone. We also reviewed the Income Tax Act, GAAR provisions, Rule 10U, and the official India–Mauritius DTAA. Finally, we ensured consistency with CBDT circulars and constitutional principles on treaty supremacy.