Section63 Guides s.63 BSA 2023

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The Section 63 certificate, field by field

Section 63(4) of the Bharatiya Sakshya Adhiniyam does not merely require a certificate. It requires one in the form of the Schedule, in two parts. This is that form, entry by entry, with what each entry is asking for.

Why there is a form at all

Section 65B of the Evidence Act required a certificate but never said what it should look like. Practice diverged: some were a paragraph, some were ten pages, and a great many recited conditions the deponent had not actually considered. Section 63(4) closes that by prescribing the form — a Schedule in two parts, with the particulars of the record and of the device set out in it.

The practical consequence is that a certificate can now be wrong on its face. An entry left blank is visible. A hash that is absent, or stated without naming the algorithm, is visible. That cuts both ways, and it is the reason to fill the form properly rather than approximately.

Part A — the person producing the record

Part A is the deponent’s own certificate. It is signed by the person who was in fact in control of the device, and it says four things: where the record came from, that the device was working, that the information reached it in the ordinary course, and what the hash of the record is.

PART A — CERTIFICATE BY THE PERSON PRODUCING THE ELECTRONIC RECORD

I, ______________________________, son / daughter of ________________
______________________, aged ______ years, resident of _______________
____________________________________________, state on oath:

1.  The electronic record at Annexure A was produced from the device
    described in Schedule II, which was during the material period in
    my lawful control and in regular use.

2.  The said device was operating properly; or, where it was not, no
    such deficiency affected the accuracy or the contents of the
    electronic record.

3.  The information contained in the record reproduces, or is derived
    from, information supplied to the device in the ordinary course of
    its activities.

4.  The hash value stated below was computed upon that record.

        Hash algorithm ....  SHA-256
        Hash value ........  ____________________________________________
                             ____________________________________________

I declare the above to be true to the best of my knowledge,
information and belief.


____________________        Date ____________      Place ____________
Signature of deponent

Name ______________________________

What each clause is actually asking

Only the first block — who you are, and which conversation — is strictly needed to make the certificate legible. The device particulars in Schedule II are what make it hard to attack, and they are the entries most often left empty. See who should sign Part A if there is any doubt about the right deponent.

Part B — the expert

Part B is a second certificate, signed by an expert, going to the technical particulars rather than to the provenance. Its function, as the Supreme Court put it in Pune Bar Association v. Union of India (2026), is to provide an additional layer of authenticity to the secondary electronic evidence.

PART B — CERTIFICATE BY THE EXPERT

I, ______________________________, do hereby certify that I have
examined the electronic record referred to in Part A above and state
as follows:

    Hash algorithm ..............  SHA-256
    Hash value ..................  ______________________________________
    Source file .................  ______________________________________
    File size ...................  ______________ bytes
    Entries in the record .......  ______________
    Participants identified .....  ______________
    Entries showing media omitted  ______________
    Entries deleted before export  ______________
    Media files present .........  ______________
    Date range of conversation ..  ____________ to ____________
    Device / record particulars .  as at Schedules I and II

1.  I have examined the electronic record at Annexure A and the
    particulars set out at Part A.
2.  I have independently verified the hash value stated above using
    the algorithm named.
3.  The technical particulars set out above are correct to the best of
    my knowledge, information and belief.

Name _______________  Qualification _______________  Organisation ______


____________________        Date ____________      Place ____________
Signature of expert

Two things go wrong here more than anything else. The first is treating Part B as a formality and having it signed by whoever is available — the Schedule wants an expert, and the court has to be satisfied of the expertise. The second is having the expert adopt a hash handed to them rather than recomputing it, which makes clause 2 untrue. Who can sign Part B deals with the qualification question, which the Supreme Court has addressed without settling.

The Schedules — particulars of the record and the device

The declaration is short because the detail sits in the Schedules. Two blocks, and both are checkable:

None of this is decorative. An opponent who wants to say the record came from somewhere else has to work against a filled-in device block; against an empty one, they only have to ask.

Where this wording comes from

The form above is a working skeleton in the order the Schedule sets its entries out, drafted to be filled in and settled by an advocate. It is not a reproduction of the statutory text, and it is not a substitute for reading the Schedule as enacted. Where the two differ, the Schedule governs.

The same goes for anything else offering a “Section 63 certificate template”, including this one: a template is a starting point for a document you sign on oath. Read what you are signing.

Filling it for a WhatsApp conversation

  1. Take the export from the device, with media if the attachments matter. How to export sets out both platforms.
  2. Hash the file before anything else touches it, and record the algorithm alongside the value.
  3. Fill Schedule II from the phone itself — Settings will give you the model, the operating system version and, on most handsets, the IMEI.
  4. Complete Part A in the name of the person who held that device, and have them sign it.
  5. Have Part B completed by someone who can actually recompute the hash and speak to the particulars.
  6. File the certified file, not a re-saved copy of it. See filing chat evidence.

Section63 fills this form from the export itself: Part A pre-filled from the particulars you enter, Part B with the twelve technical entries already computed so the expert verifies rather than re-derives them, and both Schedules populated from the file. What it cannot do is be the deponent or the expert, and it does not pretend to.


This guide explains procedure and states the law as we understand it. It is not legal advice, and Aarohan Enterprises is not a law firm. Whether a court admits a particular record, and what weight it gives it, is for that court to decide. Have an advocate settle anything you intend to file.

Prepare one now

Section63 builds this document from your export.

Drop in the .txt or .zip WhatsApp gives you and read the whole exhibit — transcript, Part A, Part B, Schedules and the integrity checks — before you pay.

More guides

The Section 63 certificate

Who signs Part AChoosing the right deponent for the Section 63(4) certificate: lawful control of the device, why an advocate or clerk should not sign, and what to do when the phone belonged to someone else.
Who can sign Part BThe expert certificate under Section 63(4) BSA, the Section 79A question, and what the Supreme Court decided — and expressly did not decide — in 2026.
From Section 65B to Section 63What the Bharatiya Sakshya Adhiniyam 2023 changed for electronic evidence certificates, and what carried over from Section 65B of the Evidence Act.

Preparing and filing the record

Exporting a chat for courtStep by step: exporting a WhatsApp conversation on Android and iPhone, with or without media, what the .txt and .zip contain, and how to get the file off the phone without changing it.
Filing a chat exhibitWhat goes on the court file when chat evidence is produced: the transcript, the Section 63(4) certificate, the native file, service on the other side, and when the certificate must be filed.
Screenshots vs an exportWhat a WhatsApp screenshot can and cannot establish in court, how it differs from an export, and how to produce a screenshot properly when it is genuinely all you have.
WhatsApp chat to PDF for courtHow to convert a WhatsApp chat to a PDF for court in India: what the rendered transcript has to contain, why the PDF is not the certified record, and what has to be filed alongside it.
The WhatsApp export .zipWhat WhatsApp puts inside the .zip it gives you, why unzipping and re-zipping breaks the hash, and how the transcript and the attachment files become a single Section 63 exhibit.
Preserving the conversationWhat to do the moment a WhatsApp conversation becomes evidence: stop the losses, take the export, keep the handset, and understand what preservation does and does not establish.
Verifying the hash, step by stepThe exact commands to recompute a SHA-256 hash on Windows, macOS and Linux, what a match proves, and what to do when it does not match.
“Media omitted”: what it meansWhy a WhatsApp export says media omitted, whether the files can be recovered, and how to take an export that includes them.
Photographs, voice notes and documentsHow attachments from a WhatsApp conversation are produced in Indian proceedings, why each file needs its own hash, and how media is tied back to the transcript.
Voice notes, audio and transcriptsHow WhatsApp voice notes and audio are produced in Indian proceedings: the .opus file, who prepares the transcript, translation into the language of the court, and what identifies the speaker.

What a chat can and cannot prove

Are chats valid evidence?Whether WhatsApp messages are admissible in Indian courts under the Bharatiya Sakshya Adhiniyam, what the Section 63(4) certificate requires, and the difference between admissibility, proof and weight.
Deleted messagesWhat happens to deleted WhatsApp messages, why an export cannot recover them, what a backup does and does not restore, and the routes that actually exist when the deleted content matters.
Challenging chat evidence: a checklistThe grounds on which chat evidence is attacked in Indian proceedings: certificate defects, provenance, completeness, attribution and alteration.
Group chats, attribution and third partiesThe particular problems of group conversations in evidence: who said what, participants who are strangers to the dispute, and what to redact.
The limits of a WhatsApp exportThe honest limits of chat evidence: deleted and disappearing messages, edited messages, forwarding, read receipts and what an export is not.
WhatsApp Business and company accountsProducing WhatsApp Business conversations in Indian proceedings: who was in lawful control of a company account, what the Business app adds to the record, and how orders and automated replies are read.
Timestamps, order and time zonesHow WhatsApp writes dates and times into an export, whose clock and time zone they come from, why 05/06 is ambiguous, and what a gap in the sequence does and does not show.

By proceeding

Divorce and matrimonialHow chat evidence is used in matrimonial proceedings in India, which conversation to produce, the problem with messages taken off a spouse’s phone, and what a transcript can and cannot establish.
498A cruelty proceedingsHow chat evidence is used in Section 498A IPC (now Section 85 BNS) proceedings by both sides, what a transcript can establish about demands and conduct, and how records are used at the quashing stage.
Maintenance proceedingsHow chat evidence is used to establish income, concealed earnings and standard of living in maintenance proceedings, alongside the affidavit of disclosure required by Rajnesh v. Neha.
Domestic violence (PWDVA)How chat evidence is used in proceedings under the Protection of Women from Domestic Violence Act, 2005 — verbal, emotional and economic abuse, interim relief, and producing the record properly.
Cheque bounce (s.138 NI Act)How chat evidence is used in Section 138 Negotiable Instruments Act proceedings: proving the underlying debt, rebutting the presumption, acknowledgment of liability and part payment.
Contract and commercial disputesHow chat evidence is used in commercial matters: formation and variation of contracts by message, purchase orders and delivery, admissions of dues, arbitration agreements, and business account records.

हिन्दी

WhatsApp चैट कोर्ट में कैसे पेश करेंWhatsApp चैट को भारतीय अदालत में सबूत के तौर पर पेश करने की पूरी प्रक्रिया: चैट एक्सपोर्ट, SHA-256 हैश, धारा 63(4) BSA का प्रमाणपत्र (भाग A और भाग B), और दाखिल करते समय क्या-क्या देना होता है।