Decoding Section 63(4) of BSA, 2023: Supreme Court Settles the Controversy on Hash Values and Expert Certificates in Pune Bar Association v. UOI : Electronic Evidence under Bharatiya Sakshya Adhiniyam: Why the Supreme Court Upheld Section 63(4) and Redefined "Expert" Criteria : The Digital Fingerprint of Law: Supreme Court's Landmark Clarification on Hash Values, Expert Signatures, and BSA Section 63(4)

1. Introduction

The transition from the old Indian Evidence Act, 1872, to the newly enacted Bharatiya Sakshya Adhiniyam, 2023 (BSA), has triggered intense academic and courtroom debates. At the absolute center of this legal shift is Section 63(4) of the BSA, which introduces rigorous statutory prerequisites for admitting secondary electronic records into evidence.

In a significant order passed by a three-judge bench of the Supreme Court of India in Pune Bar Association v. Union of India and Others (2026), the apex court evaluated the constitutional validity of this stringent new regime. The petitioner challenged the mandatory requirements of disclosing "hash values" and procuring expert signatures, calling them "manifestly arbitrary" and excessively burdensome for ordinary litigants. This landmark judgment clears the air on electronic evidence authentication, providing essential clarity for contemporary litigation, future judicial exams, and technological adaptations in Indian courts.

2. Case Details

• Case Name: Pune Bar Association v. Union of India and Others (Writ Petition (Civil) No. 599 of 2026)

• Citation: 2026 INSC [To be updated upon final publication; Order dated May 22, 2026]

• Bench: Hon'ble Chief Justice Surya Kant, Hon'ble Mr. Justice Joymalya Bagchi, and Hon'ble Mr. Justice Vipul M. Pancholi

• Date of Judgment: May 22, 2026

3. Core Legal Issues

The Supreme Court was primarily called upon to adjudicate the following pivotal legal questions:

• Constitutional Validity of Section 63(4) of BSA: Whether the mandatory filing of a standard-form certificate under Section 63(4) read with the Schedule to the BSA suffers from the vice of "manifest arbitrariness" under Article 14 of the Constitution.

• The Burden of Hash Values (Part A): Whether forcing ordinary litigants to disclose the hash value of a digital record under Part A of the Schedule imposes an unconstitutional and undue hardship.

• Scope of an "Expert" (Part B): Whether the "expert" mandated to sign Part B of the Schedule is strictly limited to an Examiner of Electronic Evidence notified under Section 79A of the Information Technology Act, 2000.

4. Key Arguments

For the Petitioner (Pune Bar Association):

• Undue Litigant Hardship: Counsel argued that demanding a technical declaration like a digital "hash value" (Part A) and an expert signature (Part B) creates an onerous obligation that effectively blocks common litigants from introducing electronic evidence.

• Illusory Infrastructure: Relying on the Madras High Court judgment in R. v. B & Anr (2024), the petitioner argued that if only Section 79A IT Act-notified central/state examiners can sign Part B, the severe scarcity of such official experts makes the implementation of the law practically impossible and illusory.

For the Respondents (Union of India & Others):

• Combating Modern Risks: The state countered that electronic data is highly volatile, prone to constant mutation, modification, and high-tech manipulation via Artificial Intelligence (AI) and deepfakes.

• Ensuring Authenticity: The legislative intent behind the beefed-up certificate under the BSA is to establish an unassailable framework to verify the integrity and authenticity of digital evidence before it enters the judicial record.

5. Judgment & Ratio Decidendi

The Supreme Court disposed of the writ petition by completely upholding the statutory framework of Section 63(4) of the BSA, providing two major legal rationales:

1. Hash Value as a "Rational Nexus" to Guard Against Deepfakes

The court observed that technology has deeply encroached into human life, rendering emails, audio clips, and video recordings standard fodder for litigation. However, electronic records are uniquely susceptible to tampered modifications.

"Hash value of an electronic data is synonymous with an electronic fingerprint and provides a sure way of identifying and verifying digital data."

The Apex Court ruled that requiring a hash value ensures data integrity and holds a clear, rational nexus with the objective of the BSA—protecting courts from being misled by manipulated data or AI-generated deepfakes. Thus, it cannot be deemed arbitrary or unreasonable.

2. A Harmonious Expansion of the term "Expert"

The most vital part of the ruling lies in how the Supreme Court handled the Madras High Court’s narrow interpretation in R. v. B & Anr, which stated that only Section 79A IT Act-notified bodies could fill out Part B.

The Apex Court harmonized Section 39(1) (general expert opinions on science/art) and Section 39(2) (opinions of notified Examiners of Electronic Evidence) of the BSA. The court held that:

• Section 39(2) is not prefaced by a non-obstante clause; hence, it does not exclude Section 39(1).

• If a court is thoroughly satisfied by unimpeachable material that an individual possesses special skills and expertise in computer science and cyber forensics, that person's opinion is relevant under sub-section (1).

• Consequently, any independent cyber forensic expert satisfying the court can sign Part B of the Schedule, not just government-notified Section 79A IT Act examiners.

The court cleared up this confusion by holding that the restrictive finding of the Madras High Court shall not be treated as a binding precedent.

6. Key Takeaways for Legal Professionals & Aspirants

For Practicing Lawyers:

• Compliance is Mandatory: Standard-form certificates under the Schedule of the BSA with Part A (Hash Value) and Part B (Expert Signature) are completely constitutional and mandatory for leading secondary electronic evidence.

• Expanded Choice of Experts: You do not have to wait for a handful of government-notified Section 79A IT Act labs to sign off on your electronic evidence certificate. Private, qualified cyber forensic experts with demonstrable credentials can legally certify Part B, provided the court is satisfied with their expertise.

For Judicial & APO Aspirants (Exam Insights):

• New Act Core Concepts: Expect direct questions in coming exams on Section 63(4) BSA vs. Section 65B of the Old Evidence Act.

• Important Statutory Mapping: Memorize how Section 39 of the BSA (Expert Opinions) matches up against Section 45 of the old Indian Evidence Act, and pay close attention to how Section 39(1) and 39(2) work harmoniously together.

• Landmark Precedent Case Law: Use Pune Bar Association v. UOI (2026) as the leading authority to write answers regarding the admissibility of electronic footprints, hash values, and the evolved definition of an electronic expert in modern Indian jurisprudence.