The law governing foreigners in India is undergoing a profound transformation. Since the enactment of the Immigration and Foreigners Act, 2025, questions of citizenship, detention, deportation and illegal migration have increasingly reached constitutional courts. The recent case before the Calcutta High Court capture this transition.
In Suman Molla v. State of West Bengal, the Calcutta High Court was asked to examine whether a person detained as an alleged Bangladeshi national had produced sufficient material to establish Indian citizenship. Rejecting a habeas corpus petition, the Division Bench of Justice Debangsu Basak and Justice Ajay Kumar Gupta held that documents such as Aadhaar cards, voter identity cards, PAN cards, bank records and ancestral land records, though important indicators of identity and residence, are not conclusive proof of citizenship. The judgment reinforces the statutory burden placed upon persons alleged to be foreigners while simultaneously illustrating how difficult that burden can become in practice, particularly for individuals whose lives have long been documented through the very instruments of the Indian State.
At its core, the dispute was not whether the State could regulate immigration or deport undocumented migrants. Rather, it concerned a more fundamental legal question: what must a detainee prove to establish Indian citizenship once the State alleges that they are a foreign national? The Court undertook a detailed examination of what constitutes legally acceptable proof of citizenship under Indian law, reiterating that citizenship cannot be inferred from possession of government-issued identity documents alone. Instead, the Court emphasized that citizenship must be established strictly in accordance with the Citizenship Act, 1955, and that when authorities allege a person to be a foreign national, the burden of disproving that allegation rests squarely upon the individual concerned.
Background
The habeas corpus petition was filed by the detainee’s relative, challenging the detention of a man who had been apprehended on June 18, 2026 after authorities concluded that he was a Bangladeshi national. The petitioner argued that the detention was illegal because the detainee’s citizenship remained under dispute following the 2026 Special Intensive Revision (SIR) of electoral rolls. According to the petition, the detainee had initially been placed “under adjudication” during the SIR exercise, his name had subsequently been deleted from the electoral roll, and an appeal against that deletion remained pending. Consequently, it was argued that the authorities could not proceed to detain him before the citizenship dispute had been finally resolved.
To establish Indian citizenship, the petitioner relied upon several documents, including:
- the detainee’s Voter Identity Card;
- Aadhaar Card;
- PAN Card;
- bank account records;
- ancestral land records; and
- the passport of the detainee’s paternal aunt.
The petitioner also relied upon the Supreme Court’s decision in Sabitri Dey @ Swasthi Dey v. Union of India to contend that a meaningful opportunity of hearing ought to have preceded the detention.
The State, however, maintained that the detainee had already been identified as a Bangladeshi national after inquiry, interrogation and verification, and had been detained in accordance with the Ministry of Home Affairs Circular dated May 2, 2025 governing deportation proceedings. It further informed the Court that the detainee had failed to produce any document capable of legally establishing Indian citizenship within the period prescribed under the circular.
“There is an acknowledgement on the part of the detainee that he is a Bangladeshi national. However, such acknowledgement was made when the detainee was in the detention centre.” (Para 19)
“There is no criminal proceedings initiated as against the detainee as on date. Without entering into the debate as to whether or not an admission of civil liability made while in detention will be visited with the same consequences as that of an admission made to the police while in custody in respect of the criminal proceeding, we propose to examine the documents and materials put forward by the detainee and the writ petitioner in support of the claim of Indian Citizenship of the detainee. Even if we are to apply the principle that, an admission made in the custody of the police 6 should be discarded, none the less, the onus of establishing citizenship remains with the detainee.” (Para 20)
Court’s reasoning
Citizenship cannot be proved merely through identity documents: The central question before the Bench was not whether the detainee possessed official identity documents, but whether those documents legally established citizenship under the Citizenship Act. The Court answered that question emphatically in the negative.
Examining each document individually, the Bench observed that a Voter Identity Card merely evidences enrolment in the electoral roll and is not conclusive proof of citizenship. That conclusion assumed greater significance in the present case because the detainee’s name had already been deleted from the electoral roll during the SIR process.
The Court further held that an Aadhaar Card does not certify citizenship, noting that Aadhaar is fundamentally an identity document linked to residence and not nationality. Likewise, a PAN Card merely facilitates tax administration and cannot establish citizenship. Even the opening or operation of a bank account does not prove that the account holder is an Indian citizen.
Similarly, ancestral land records, although relevant to ownership or lineage, do not establish the citizenship of descendants. Nor could the passport of the detainee’s paternal aunt conclusively prove his own nationality, since citizenship is an individual legal status that cannot be inferred solely from the citizenship of relatives without satisfying the statutory requirements governing acquisition by descent.
In doing so, the Court effectively distinguished between documents that establish identity or residence and documents capable of legally proving citizenship, observing that the former cannot automatically establish the latter.
“There is a Voter Identity Card of the detainee appearing at page 27 of the writ petition, AADHAAR Card at page 28, PAN Card issued by the Income Tax Department at page 29, a Pass book of United Bank of India from pages 30 to 35 of the writ petition.” (Para 38)
“Voter Identity Card is not a conclusive proof with regard to Indian Citizenship. It is evidence of enrolment of the detainee in the electoral roll. Name of the detainee stands deleted from the electoral roll in the SIR, 2026 process.” (Para 39)
“AADHAAR Card, cannot by itself be a conclusive proof of Indian citizen. So also a Permanent Account Number issued by the Income Tax Department. Opening of a Bank Account, by itself, again is not a proof of Indian citizenship.” (Para 40)
“Record of Rights of the great grand-father and the grand-father of the detainee are annexed to the writ petition. Again, those do not establish conclusively the Indian citizenship of the detainee.” (Para 41)
For millions of Indians, these are precisely the documents through which the State recognises their existence. They are required to open bank accounts, obtain welfare benefits, access government schemes, pay taxes, register property, secure employment and participate in elections. Yet, when citizenship itself becomes disputed, the Court holds that these very documents carry limited evidentiary value.
This legal distinction between identity recognised by the State and citizenship recognised by law may be doctrinally sound, but it also reveals the fragmented nature of India’s documentary architecture. Individuals often accumulate multiple layers of State-issued identification over decades without ever possessing a singular document conclusively proving citizenship. The judgment therefore reinforces a legal principle while simultaneously highlighting the evidentiary difficulties faced by persons accused of being foreigners.
Citizenship must be established under the Citizenship Act, 1955: Through the judgement, the Bench had emphasised that citizenship cannot be inferred from possession of identity documents. Instead, it must be established through one of the statutory modes recognised under the Citizenship Act, 1955.
The Court carefully analysed whether the detainee could claim citizenship by birth under Section 3, by descent under Section 4, or by registration under Section 5. It concluded that none of these routes had been satisfactorily demonstrated. No birth certificate or reliable proof of birth was produced to substantiate citizenship by birth. The claim of citizenship by descent failed because the documentary record contained inconsistencies regarding the detainee’s parentage and failed to establish the Indian citizenship of the relatives through whom descent was claimed. Citizenship by registration was never pleaded at all.
The Court was particularly critical of the manner in which the petition had been argued, observing that despite repeated opportunities, neither the petitioner nor the detainee identified the statutory provision under which citizenship was claimed. Instead of addressing the legal requirements of the Citizenship Act, the petition relied primarily upon documentary indicators of identity and residence.
“Neither the writ petitioner nor the detainee despite repeated opportunities being granted to them addressed the Court on the core issue of citizenship of the detainee. Queries of the Court as to under which provision of the Act of 1955 is the detainee a citizen of India is met with either stoic silence or thunderous utterances completely removed from the issue at hand, by the learned Advocate for the petitioner.” (Para 23)
This insistence on grounding every citizenship claim within the framework of the Citizenship Act is legally significant. It reinforces that citizenship disputes cannot be resolved through broad assertions of long residence or possession of government documents alone; they must satisfy the statutory conditions prescribed by Parliament.
Yet this approach also raises broader concerns. In practice, many citizenship disputes arise precisely because documentary trails spanning several decades are incomplete, inconsistent or unavailable. Particularly in border regions and among economically vulnerable populations, births frequently went unregistered, family records remain fragmented and documentary continuity across generations is difficult to establish. By requiring claimants to trace citizenship strictly through statutory categories while simultaneously according limited evidentiary value to commonly held documents, the threshold for proving citizenship becomes considerably more demanding. Whether such a standard strikes the appropriate balance between sovereign control over immigration and protection against erroneous detention is a question that extends well beyond the facts of this individual case.
The burden of proof survives the transition from the Foreigners Act to the Immigration and Foreigners Act: The second major contribution of the judgment lies in its treatment of the burden of proof under the newly enacted Immigration and Foreigners Act, 2025. Although the legislation repealed the Foreigners Act, 1946, the Court makes it abundantly clear that the fundamental evidentiary principle governing foreigners’ proceedings has remained unchanged—the person alleged to be a foreign national bear the burden of proving otherwise.
The Court located this burden in Section 16 of the Immigration and Foreigners Act, 2025, observing that once the Indian authorities allege that a detained person is a foreign national, “the onus is on the detainee to establish his or her nationality.” The Bench noted that the detention had been effected pursuant to the Ministry of Home Affairs Circular dated 2 May 2025, which lays down the procedure for apprehension and deportation of illegally staying foreign nationals.
“When Indian authorities alleged that, a person detained is a foreign national, the onus is on the detainee to establish his or her nationality. This is so by reason of Section 16 of the Immigration and Foreigners Act, 1946.” (Para 12)
Importantly, neither the validity of the Circular nor the procedure prescribed therein had been challenged by the petitioner. In the absence of such a challenge, the Court confined itself to examining whether the authorities had acted within the framework of the Circular, ultimately concluding that they had.
This aspect of the judgment is significant because it effectively signals judicial continuity despite legislative change. While the statutory framework has shifted from the Foreigners Act, 1946 to the Immigration and Foreigners Act, 2025, the Court treats the burden of proof as having been substantially carried forward into the new regime.
In doing so, however, the judgment raises a larger constitutional question. The allocation of the burden of proof has long distinguished foreigners’ law from ordinary civil and criminal proceedings. In most legal disputes, the party making an allegation must establish it. Foreigners legislation reverses that position. Once the executive forms the view that an individual is a foreign national, it is the individual who must prove Indian citizenship. This reverse burden has historically been justified on the basis that facts concerning one’s birth, parentage, family lineage and migration history lie within the “special knowledge” of the individual concerned. The Calcutta High Court adopts precisely this rationale.
Inconsistencies in the petition weakened the claim: Apart from deficiencies in documentary evidence, the Bench found significant inconsistencies in the petitioner’s own case. While the police complaint described the petitioner as the detainee’s cousin, the writ petition claimed he was the detainee’s uncle. The Court also found the assertion that the petitioner had raised the detainee after his father’s death to be implausible, noting that the petitioner himself was only 38 years old whereas the detainee claimed to be 46.
The Bench further recorded that despite repeated opportunities, neither the petitioner nor the detainee disclosed the burial place of the detainee’s parents, even after the Court indicated that such information could facilitate DNA testing to establish lineage. Their refusal prompted the Court to draw an adverse inference against the claim that the parents were Indian citizens. These inconsistencies, according to the Court, further eroded the credibility of the petitioner’s assertions regarding the detainee’s citizenship.
The Court’s reliance on Sabitri Dey: A part of the petitioner’s argument rested on the Supreme Court’s recent decision in Sabitri Dey @ Swasthi Dey v. Union of India, where the Court had underscored the importance of procedural fairness in foreigners’ proceedings in Assam. The petitioner argued that the detainee ought not to have been detained before his citizenship claim had been adjudicated and relied upon Sabitri Dey to contend that an opportunity of hearing was an indispensable safeguard before coercive action could be taken.
The Calcutta High Court, however, distinguished the decision rather than applying it directly. It observed that Sabitri Dey arose under an entirely different statutory framework—the Foreigners Act, 1946 read with the Foreigners (Tribunals) Order, 1964, which governed proceedings before Foreigners Tribunals in Assam. That regime, the Court noted, involved formal adjudication before specialised tribunals and was therefore materially different from the procedure presently being followed under the Immigration and Foreigners Act, 2025 and the MHA Circular dated May 2, 2025. Nevertheless, the Court did not reject the principles articulated by the Supreme Court altogether.
On the contrary, it expressly acknowledged that Sabitri Dey reaffirmed an important proposition that although the burden of proof rests upon the proceedee, the adjudicatory authority is not relieved of its obligation to conduct a lawful adjudication. The Bench recognised that the Supreme Court had interpreted Section 9 of the Foreigners Act as operating alongside ordinary evidentiary principles, placing the burden upon the person proceeded against because matters such as birth, parentage, residence and family history ordinarily remain within that person’s special knowledge.
A detailed report on the Sabitri Dey judgment may be read here.
Yet, having acknowledged these principles, the Court concluded that they did not assist the petitioner because the challenge before it was fundamentally different. The present detention had been carried out under the new statutory framework; the applicable MHA Circular itself had not been challenged; and there was no allegation that the authorities had departed from the procedure prescribed therein.
The distinction is legally coherent. However, it also leaves certain constitutional questions unresolved. The Supreme Court’s observations in Sabitri Dey were not confined merely to the procedural architecture of Assam’s Foreigners Tribunals. They reflected broader constitutional concerns regarding fairness where questions of citizenship carry the gravest of consequences—loss of liberty, detention and eventual deportation. Those concerns do not disappear merely because Parliament has enacted a new immigration statute. Indeed, one may argue that the repeal of the Foreigners Act does not diminish the constitutional obligation to ensure that executive determinations of nationality remain subject to meaningful procedural safeguards.
An impossibly high evidentiary threshold?
Perhaps the most striking aspect of the judgment is not its reiteration that Aadhaar, PAN or Voter ID are not conclusive proof of citizenship, that proposition has long been accepted in law, but its treatment of the cumulative evidentiary value of multiple public documents.
The petitioner did not rely upon a single document. Instead, the record contained an array of government-issued and historical documents: a Voter Identity Card, Aadhaar Card, PAN Card, bank account records, ancestral land records, and the passport of a close blood relative. Yet the Court held that none of these documents, whether considered individually or collectively, established citizenship.
This raises an important evidentiary question. While each document may not independently prove citizenship, should courts entirely discount the probative value arising from their cumulative existence?
The Bench correctly reiterates a settled proposition that identity documents are not citizenship documents. Legally, Aadhaar establishes identity and residence, PAN facilitates taxation, while the Voter ID merely evidences electoral enrolment. None is issued after a formal determination of citizenship.
However, in practical governance, these documents are issued by different State authorities after varying levels of verification. When an individual has simultaneously been recognised by electoral authorities, tax authorities, banking institutions and other public agencies over a prolonged period, those records may not conclusively establish citizenship, but they do create a significant evidentiary narrative that deserves weight. By treating every document as legally irrelevant once citizenship is questioned, the Court risks reducing decades of governmental recognition to virtually no evidentiary value.
The burden of proof may become nearly impossible to discharge
The Court places considerable emphasis on the statutory burden under the Immigration and Foreigners Act, 2025, holding that once authorities allege that an individual is a foreign national, the burden shifts to that individual to establish Indian citizenship.
However, in India, birth registrations were not uniformly maintained across rural India, particularly before universal civil registration became commonplace. Land records may be incomplete, names frequently vary across official records, and multiple generations may never have possessed formal documentary proof of citizenship. Against that backdrop, if voter registration, Aadhaar, PAN, banking records, ancestral property records and even close relatives’ documents are all held insufficient, the question naturally arises: what evidence would realistically satisfy the burden?
The Court also found inconsistencies regarding the petitioner’s relationship with the detainee, discrepancies in the father’s name across documents, and the inability to identify the burial place of the detainee’s parents, drawing adverse inferences from these circumstances. Those inconsistencies undoubtedly weakened the petitioner’s case. Yet the reasoning also reflects an expectation of documentary precision that may not always align with Indian administrative realities.
Minor spelling variations, inconsistent recording of names across generations, differing descriptions of familial relationships and gaps in historical records are hardly uncommon in citizenship litigation. Courts have repeatedly recognised such inconsistencies in other contexts without treating them as determinative. Viewed through that lens, the judgment arguably privileges documentary consistency over the broader social realities of record-keeping in India.
Detailed reports of small errors costing people their citizenship may be read here and here.
Interestingly, the Court distinguishes the Supreme Court’s decision in Sabitri Dey primarily because it arose under a different statutory framework. However, Sabitri Dey was not merely about the Foreigners Act—it also reaffirmed the broader constitutional requirement that nationality determinations affecting liberty must be undertaken through fair and meaningful procedures.
The judgment therefore raises a larger constitutional question that extends beyond the facts of this case: when the State itself has, over decades, repeatedly recognised an individual through various statutory systems, should those recognitions collectively carry greater evidentiary weight in citizenship adjudication, even if none is independently conclusive?
The complete judgment may be read below:
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