From 1 October 2026, India's Ministry of Petroleum and Natural Gas requires domestic LPG consumers to complete biometric Aadhaar authentication to book refills at the regulated, subsidised price. All India Radio's report of the ministry statement confirms the date and the stated purpose: ensuring subsidised cylinders reach genuine households, curbing diversion to commercial and industrial use, and removing duplicate or ineligible connections. Consumers who do not authenticate can still buy LPG, but not at the subsidised price.
This is legally defensible. Whether it is well designed is a separate question, and the answer depends on what happens to the households that cannot or will not authenticate.
The strongest case for the mandate
Diversion of subsidised cylinders is a real fiscal leak. A household cylinder priced far below the market rate invites resale to restaurants and small businesses. Linking each connection to a biometrically verified person is a cheap, auditable way to find ghost and duplicate connections, and the state is spending public money, so it has a legitimate interest in knowing who receives it.
The rollout also looks less abrupt than the headline suggests. According to Outlook Money's account of the ministry announcement, 27.43 crore active domestic consumers, about 89.9%, had completed authentication by 19 September. Those households "do not need to take any further action." Press reports list a series of deadline extensions after the original 30 June target, the last to 14 September. The ministry gave people time, and most of them used it.
What the law allows
Section 7 of the Aadhaar Act, 2016 lets the government require Aadhaar authentication as a condition for any subsidy, benefit or service funded from the Consolidated Fund of India. In Justice K.S. Puttaswamy (Retd.) v. Union of India, decided on 26 September 2018, the Supreme Court's majority upheld that provision. The same text sets out the safeguards that matter here. A person without an Aadhaar number must be offered "alternate and viable means of identification." The judgment also records UIDAI's own position that "authentication failures do not mean exclusion or denial from subsidies, benefits or services," and that requesting entities must provide exception-handling mechanisms under Regulation 14(i) of the Authentication Regulations.
So the ministry is on firm ground when it ties a subsidy to Aadhaar. Biometric Update reports that this effectively makes Aadhaar mandatory for the subsidy even though Aadhaar is officially optional, and that is exactly what Section 7 permits for Consolidated Fund-backed schemes. Critics such as Moneylife argue the mandate is clearly valid only for beneficiaries of the PMUY and PAHAL direct benefit transfer schemes, and that ministry clarifications have been ambiguous about everyone else. That ambiguity is a drafting failure the ministry can fix.
Where proportionality gets tested
A legal mandate is not automatically a good one. Three design questions matter.
First, the penalty is steep for the poorest. Moneylife's figures put a 14.2 kg cylinder in Delhi at ₹913, with PMUY beneficiaries receiving a ₹300 targeted subsidy that brings the price to ₹613. A household that fails to authenticate loses about a third of the cylinder's cost. The ministry says such customers can still buy 5 kg or 10 kg cylinders, but only "subject to local availability," and at market prices. Smaller cylinders at market price are a costly fallback for exactly the households the subsidy exists to protect.
Second, the benefit may be overstated. The Comptroller and Auditor General examined PAHAL in 2016. As summarised by Moneylife, about 92% of the ₹23,316 crore in savings reported for FY2015-16 came from falling crude prices rather than Aadhaar-linked transfers. Authentication is a sound anti-leakage tool, but the 2016 audit gives the government little reason to assume it will deliver large savings.
Third, biometrics fail unevenly. The Court's majority treated authentication failures as disputed questions of fact and relied on UIDAI's accuracy claims. Manual labourers and older people are the groups most likely to have worn fingerprints. That is why UIDAI's launch of face authentication for the electronic Public Distribution System on 29 September, at Aadhaar Samvaad in Kolkata, matters. Drishti IAS's coverage describes it as a consent-based, contactless option for beneficiaries, jointly launched with the Department of Food and Public Distribution and NIC. Face authentication is a real improvement over fingerprints for people whose prints do not read. The LPG rule says fingerprint, face or iris are all acceptable, which is the right design.
A proportionate version of the mandate
The policy goal is sound and the legal basis is secure. Three changes would make the rule match the safeguards the Court recorded.
- Publish exclusion data. The oil marketing companies should report how many households were denied subsidy for authentication failure, as opposed to refusal, by state and by scheme. Without it, nobody can tell whether the 10% still outside the system is made up of ghost connections or real families.
- Keep a working manual exception path. Section 7's "alternate and viable means" proviso and Regulation 14(i) should be operational at the distributor counter, not buried in an app. Delivery staff should be able to record a failed read and complete an assisted process, rather than send the household to market pricing.
- Clarify scope in writing. The ministry should state plainly which consumers are bound by the mandate, to remove the PMUY/PAHAL ambiguity.
India's digital public infrastructure has succeeded because it lowers friction for citizens as well as for the state. A subsidy system that is accurate for 90% of households and punitive for the rest will lose the trust that made it work. The test of this rule is not the 27.43 crore who authenticated but the households who tried and failed, and whether the system can see them at all.