The "One and the Same" certificate for an Italy student visa (and what to do when the Tahsildar refuses)

Indian names do not survive Indian paperwork intact. An initial gets expanded on one certificate and abbreviated on another. A surname and given name swap places on an ITR. A mother's name appears one way on a birth certificate and another way on a PAN card. For most of life this costs nothing. For an Italian student visa it can stop the application dead, because the consulate's answer to any such mismatch is a specific document — the "One and the Same" certificate — and that document is far harder to obtain in India than anyone tells you.

What the consulates actually require

The Bengaluru and Kolkata study-visa checklists for the 2026/27 and 2027/28 intakes carry identical wording: ensure there are no discrepancies across the submitted documents, and if there is a discrepancy in the applicant's name — or the sponsor's name — between the passport and any of the other documents, a "One and the Same" certificate, duly attested and apostilled, must be submitted.

Two details in that sentence do most of the damage. First, it covers your sponsor as well as you, so a mismatch in your father's or mother's documents triggers it even when your own papers are perfect. Second, the standard is "any of the other documents" — not just your degree. Your bank statement, your ITR, your insurance policy and your birth certificate all have to agree with your passport.

An affidavit will not work

This is the single most expensive misunderstanding in the whole process, because it is the advice most commonly given — by notaries, by document agents, and by other students who have not yet reached the counter. Italian missions reject it in writing. The Bengaluru Declaration of Value checklist states that affidavits will not be accepted. Mumbai's 2026/27 Declaration of Value checklist hardens the same rule to affidavits and self-declarations, and adds that a false declaration is punishable by law and will be reported to the Indian judicial authorities.

Correcting the document is the better first move

Read the consulates' own framing carefully. The Bengaluru family-reunion checklist — the most explicit Italian source on name matching — says discrepancies in spelling must be corrected before submitting the visa application, and offers the One and the Same certificate only where it is not possible to obtain a new corrected version. The certificate is a fallback, not the opening move.

So before you start on the certificate, ask whether the mismatched document can simply be reissued. A bank can correct a name on a statement. An insurer can fix a policy — a common Indian failure is a policy that splits a single continuous name across separate first, middle and last name fields. A university can reissue a marksheet. Each of those is usually faster than a revenue certificate, and it removes the discrepancy instead of explaining it. Reserve the certificate for the documents that genuinely cannot be changed, which in practice means older statutory records.

Who is supposed to issue it

Only one Italian document found names the acceptable Indian issuers. Mumbai's 2026/27 Declaration of Value checklist requires the certificate to be issued by the Tahsildar, the Registrar of Births and Deaths at the Municipal Corporation, or the Gram Panchayat. Every other checklist says only "the competent authority", which is where the trouble begins.

The structural problem nobody tells you about

Here is the finding that explains why so many applicants spend months on this and still fail. Italy asks for a certificate issued by a revenue official. In most of the states that the Bengaluru consulate serves, that certificate is not a notified government service at all. There is no application form for it, no prescribed fee, no service-level deadline, and no appeal route — because officially, as a distinct named service, it does not exist.

The legalisation chain after issuance

Getting the certificate is only the first of three steps, and this is where applicants lose weeks by doing things in the wrong order.

1. Issuance — by the Tahsildar, Municipal Registrar of Births and Deaths, or Gram Panchayat.
2. Attestation by the competent State authority. The Bengaluru family-reunion checklist is the only Italian source that names this positively, and it names the Home Department.
3. Apostille by the Ministry of External Affairs. MEA authenticates through designated State authorities and Regional Authentication Centres first, then legalises on the basis of those signatures. The apostille sticker costs ₹50; submission is only through the outsourced providers MEA lists.

The SDM question, answered honestly

Student groups carry two flatly contradictory claims — that SDM attestation is fine, and that Italy rejects it outright. Both are repeated with total confidence, and applicants act on whichever they read first. The accurate position is narrower than either.

What is documented: the Bengaluru, Kolkata and New Delhi checklists all state that attestation by a Sub-divisional Magistrate is not accepted. But in every one of those checklists that sentence sits in the section on study certificates, alongside the instruction that degrees and transcripts must be attested by the competent State Higher Education Department. It is a rule about your academic documents. No Italian checklist says SDM attestation is rejected for the One and the Same certificate specifically.

What follows from that: route the certificate through the State Home Department. It is the only authority the consulates name positively for this document, and the same missions demonstrably reject SDM attestation elsewhere in the same page. But treat "Italy rejects SDM for the One and the Same certificate" as a sensible precaution rather than a quoted rule — because that is what the evidence supports, and you deserve to know which is which.

Time and money

If the official refuses

Your leverage depends entirely on whether the service is notified in your state, which is why the table above matters so much.

• Kerala — the strongest position. The Kerala State Right to Service Act 2012 obliges the designated officer to provide or reject within the notified time limit, with a penalty between ₹500 and ₹5,000, and provides two appellate authorities. Cite it.
• Karnataka — Sakala provides a two-tier appeal, compensation of ₹20 per day capped at ₹500, and no fee to appeal. This only bites if the service is Sakala-notified, which we could not confirm for this certificate.
• Any state — CPGRAMS at pgportal.gov.in is free, covers state matters as well as central ministries, and has built-in escalation.
• Any state — an RTI asking which officer is competent to issue the certificate, and under what rule, often produces either the certificate or a written answer you can take to a higher office. Tamil Nadu's PIO and appellate machinery is documented, with second appeal to the State Information Commission.
• Tamil Nadu specifically — we found no evidence that TN has enacted a Right to Public Services Act, so do not rely on a statutory deadline there. RTI and the district collectorate grievance channels are the documented routes.

The short version

• Triggered by any name mismatch between your passport and any other document — yours or your sponsor's.
• Affidavits and self-declarations are explicitly rejected. So are university letters.
• Try to get the mismatched document corrected first. The certificate is the fallback.
• Issued by a Tahsildar, Municipal Registrar of Births and Deaths, or Gram Panchayat.
• Then attested by the State Home Department, then apostilled by MEA. No notary in the chain.
• It is a notified service in Kerala and effectively discretionary across most of South India — which is why it takes so long.
• Start it before every other document step.

Last reviewed against official sources on 13 Aug 2026. Verify fast-moving facts (visa fees, deadlines, FX rate) against the linked sources before relying on them for decisions.