The Process of Taking Evidence in Arbitral Proceedings

When two parties go through arbitration to settle a dispute, evidence is what ultimately shapes the outcome. The process of taking evidence in arbitral proceedings is fundamentally different from how evidence works in a regular courtroom. In India, the Arbitration and Conciliation Act, 1996 gives arbitral tribunals significant flexibility in how they handle evidence – from deciding what’s admissible to determining how witnesses are examined. This flexibility is, in fact, one of the biggest advantages arbitration holds over traditional litigation. Let’s break down how this process works, what powers the tribunal has, and why it all matters for effective dispute resolution.

The legal framework governing evidence in arbitration 🔗

The starting point for understanding evidence in Indian arbitration is Section 19 of the Arbitration and Conciliation Act, 1996. This is a crucial provision because it establishes a clear departure from the procedural rigidity of courtroom litigation. Section 19(1) explicitly states that the arbitral tribunal is not bound by the Code of Civil Procedure, 1908 (CPC) or the Indian Evidence Act, 1872. This means the strict rules of evidence that govern court proceedings simply do not apply automatically to arbitration.

Under Section 19(2), the parties themselves are free to agree on the procedure the tribunal should follow. They can design procedural rules tailored to the specifics of their dispute. If the parties do not agree on any procedure, the tribunal steps in and has full authority to conduct proceedings in whatever manner it considers appropriate. This is where the real power of the tribunal comes into play – Section 19(3) grants the tribunal the power to determine the admissibility, relevance, materiality, and weight of any evidence placed before it.

It is important to note that while the Evidence Act does not bind the tribunal, arbitrators in India generally still follow the broad principles of evidence law to ensure fairness. The tribunal may refer to the Indian Evidence Act as a guide or persuasive authority, but no party can challenge arbitral proceedings solely because a specific provision of the Evidence Act was not followed. The only non-negotiable requirement is that the proceedings must respect the principles of natural justice – both parties must be treated equally, and each must get a full and fair opportunity to present their case, as mandated under Section 18 of the Act.

Types of evidence in arbitral proceedings 🔗

Arbitration allows for a broad range of evidence. Unlike some formal litigation settings where the types of admissible evidence are narrowly defined, arbitral proceedings accommodate multiple forms. A party may adduce evidence through several means:

Documentary evidence forms the backbone of most arbitration cases. Parties submit contracts, correspondence, invoices, reports, and other relevant documents to support their claims or defences. The arbitral tribunal may also request specific documents from either party. Electronic records – including emails, text messages, and files extracted from digital storage – are increasingly common and are admissible under the general principles applicable to arbitration.

Oral evidence from witnesses of fact allows parties to call individuals who have direct, personal knowledge of the events in dispute. These witnesses testify about what they saw, heard, or did. While the tribunal generally follows the sequence laid out in Sections 137 and 138 of the Indian Evidence Act – examination-in-chief, followed by cross-examination, and then re-examination – it is not strictly required to do so. The tribunal has discretion to modify this process based on the needs of the case.

Expert evidence plays a vital role when disputes involve technical, scientific, financial, or other specialised matters. Parties may appoint their own experts to present reports and testify, or the tribunal itself may appoint experts under Section 26 of the Act. We will cover this in more detail below.

Inspection of the subject matter is another form of evidence, particularly common in construction and property disputes. The tribunal may physically inspect the site or goods in question, but must do so in the presence of all parties or their representatives to ensure fairness.

Oral hearings versus document-based proceedings 🔗

Section 24 of the Arbitration and Conciliation Act addresses how hearings are conducted. The tribunal has the authority to decide whether oral hearings are necessary for presenting evidence and arguments, or whether the proceedings can be conducted entirely on the basis of documents and written submissions.

However, there is an important safeguard: if any party requests an oral hearing, the tribunal is generally required to grant one, unless both parties have previously agreed that no oral hearing shall take place. This ensures that no party is denied the opportunity to present their case in person if they wish to do so.

The 2015 amendments to the Act introduced an additional requirement – oral hearings should, as far as possible, be conducted on a day-to-day basis, and adjournments should not be granted unless there is sufficient cause. Tribunals can even impose exemplary costs on parties seeking frivolous adjournments. This reflects the legislative intent to keep arbitration fast and efficient.

There is also a fast-track procedure under Section 29B that parties can opt for. Under this procedure, the requirement of oral hearings can be entirely dispensed with, and the dispute is decided solely on the basis of written pleadings, documents, and submissions. This option is particularly useful in straightforward disputes where oral testimony would not add significant value.

The role and powers of the arbitral tribunal in evidence assessment 🔗

One of the defining features of arbitration is the degree of control the tribunal has over the evidentiary process. The arbitral tribunal is, in many ways, the master of its own proceedings. Its powers include deciding what evidence to admit, what weight to give it, and how it should be presented.

This discretion is not unlimited, however. As noted, Section 5 of the Act limits judicial interference in arbitration proceedings, and courts have consistently held that the tribunal’s decisions on admissibility, relevance, and materiality of evidence are within the tribunal’s domain – not the court’s. A court’s role under Section 27 (discussed below) is limited to assisting with evidence collection, not re-evaluating the tribunal’s evidentiary decisions.

The tribunal is also expected to ensure transparency. Under Section 24(3), all statements, documents, and information submitted by one party must be communicated to the other party. Similarly, any expert report or evidentiary document that the tribunal relies upon must be shared with both sides. This prevents surprise evidence and maintains the integrity of the process.

Dealing with party default 🔗

What happens when a party simply does not show up or fails to submit evidence? Section 25 addresses this directly. If the respondent fails to submit a statement of defence, the tribunal may continue proceedings without treating this failure as an admission of the claimant’s allegations. If a party fails to appear at an oral hearing or produce documentary evidence without reasonable cause, the tribunal can proceed and make an award based on the evidence already available. However, if the claimant fails to communicate their claim, the tribunal has the power to terminate the proceedings entirely.

Expert witnesses under Section 26 🔗

Modern disputes – especially in areas like construction, technology, finance, and intellectual property – often involve issues beyond the general knowledge of the arbitrators. This is where Section 26 of the Act becomes significant. Unless the parties agree otherwise, the arbitral tribunal may appoint one or more experts to report on specific issues that require specialised knowledge.

Section 26 contains three key components. First, the tribunal can appoint an expert and define the issues the expert must report on. Second, the parties are required to cooperate with the expert by providing relevant documents, information, or access to goods for inspection. Third, if a party requests or the tribunal considers it necessary, the expert must participate in an oral hearing after delivering their report, where both parties can question the expert and present their own expert witnesses in response.

Parties may also appoint their own experts independently. These party-appointed experts submit written reports and can be cross-examined by the opposing party. The key challenge here is ensuring impartiality – party-appointed experts naturally tend to favour the party that engaged them. This is why the IBA Rules on the Taking of Evidence require party-appointed experts to include a statement of independence in their reports and declare any past or present relationships with the parties or the tribunal.

Hot-tubbing: a modern approach to expert evidence 🔗

An increasingly popular technique in international and Indian arbitration is hot-tubbing, also known as witness conferencing or concurrent expert evidence. In this approach, expert witnesses from both sides are examined simultaneously in a discussion-style format, rather than one after the other in the traditional adversarial manner. The tribunal leads the discussion, and each expert can respond to the other’s testimony in real time.

The IBA Rules recognise hot-tubbing under Article 8(4)(f), which permits the tribunal to arrange for witnesses to be questioned concurrently on particular issues. While the Arbitration and Conciliation Act, 1996 does not specifically mention hot-tubbing, nothing in the Act prevents it either, given the broad procedural flexibility available under Section 19. The Delhi High Court has even amended its rules to incorporate hot-tubbing in arbitration proceedings. This technique helps save time, reduces costs, and allows the tribunal to more effectively assess where experts genuinely disagree versus where differences are merely a matter of presentation.

Court assistance in taking evidence: Section 27 🔗

Arbitral tribunals, unlike courts, do not inherently have the power to compel third parties to appear as witnesses or produce documents. This is a practical limitation. To address it, Section 27 of the Act provides a mechanism for the tribunal (or a party with the tribunal’s approval) to approach the court for assistance in taking evidence.

The application to the court under Section 27 must include specific details: the names and addresses of the parties and arbitrators, the general nature of the claim and relief sought, the name and address of any witness to be heard along with a description of the required testimony, and a description of any documents or property to be produced or inspected.

Once the court receives such an application, it may order that the evidence be provided directly to the arbitral tribunal. The court can issue the same processes to witnesses – such as summons – as it would in suits tried before it. Importantly, the court’s role under Section 27 is limited to facilitating evidence collection, not evaluating the merits of the dispute or reassessing the tribunal’s decisions on what evidence is relevant.

Under Section 27(5), persons who fail to appear as directed, refuse to give evidence, or are guilty of contempt towards the tribunal face the same penalties as they would for similar offences in court proceedings. This provision gives real teeth to the evidence-gathering process in arbitration.

Electronic evidence and e-discovery 🔗

With the digital transformation of business, electronic evidence has become central to many arbitration proceedings. Emails, database records, digital contracts, chat messages, and cloud-stored files frequently constitute key evidence. Indian arbitration law does not specifically address e-discovery procedures, but the tribunal’s broad discretion under Section 19 allows it to frame appropriate rules for requesting, storing, and presenting electronic evidence.

In international arbitrations, the IBA Rules provide more structured guidance on document production, including electronic documents. Under these rules, parties may request the other side to produce specific categories of documents, including electronically stored information, and the tribunal decides on any objections based on relevance, privilege, or proportionality. Indian tribunals increasingly draw upon these international standards when handling e-discovery issues, even in domestic arbitrations.

Key principles that guide evidence-taking in arbitration 🔗

While the formal rules of the CPC and Evidence Act do not bind arbitral tribunals, several foundational principles consistently guide how evidence is handled:

Party autonomy is the cornerstone. The parties’ agreement on procedure takes precedence. If they agree to follow specific rules – whether the IBA Rules, institutional rules, or even the Evidence Act itself – those rules apply by virtue of the parties’ choice, not because they are mandatory.

Equal treatment and fair opportunity under Section 18 ensures that neither party is shut out from presenting evidence or making arguments. Denying a party the chance to present its case can result in the award being set aside under Section 34.

Efficiency and proportionality require that evidence-taking be focused and not unnecessarily drawn out. The 2015 amendments, with their emphasis on day-to-day hearings and time limits for awards under Section 29A, reinforce this principle.

Confidentiality is another consideration, though the Indian Act does not contain a specific provision mandating confidentiality of arbitration proceedings. In practice, parties often include confidentiality agreements, and institutional rules may provide additional protection for sensitive evidence.

Challenges and practical considerations 🔗

Despite the flexibility arbitration offers, the evidence-taking process is not without its challenges. One common issue is the reluctance of third-party witnesses to cooperate, which necessitates resorting to Section 27 – a process that introduces court involvement and can cause delays. Another challenge arises with cross-border evidence. When witnesses or documents are located outside India, the tribunal’s reach is limited. Indian courts have acknowledged these jurisdictional boundaries, as seen in cases where courts noted that the power to summon foreign witnesses goes beyond the scope of Section 27.

The lack of specific statutory provisions on document disclosure and discovery in the Indian Act can also create uncertainty. Unlike the IBA Rules or common law jurisdictions that have detailed discovery frameworks, Indian arbitration often relies on the tribunal’s ad hoc directions, which may vary significantly from case to case.

Additionally, balancing speed with thoroughness remains an ongoing tension. The legislative push for faster resolution – through time limits and restrictions on adjournments – is welcome, but it must not come at the cost of a party’s right to present its case fully. Tribunals must walk this line carefully.

Why flexible evidence rules matter in arbitration 🔗

The entire rationale behind keeping arbitration free from the procedural constraints of the CPC and Evidence Act is to make dispute resolution faster, more adaptable, and more focused on substance over form. In regular court proceedings, rigid evidence rules can lead to prolonged technical arguments about admissibility that have little to do with the actual merits of the dispute. Arbitration sidesteps this by giving the tribunal the authority to focus on what truly matters – the substance of the evidence and its bearing on the dispute.

This procedural freedom also allows arbitration to accommodate different legal traditions. In international commercial arbitrations, where one party may come from a common-law system and another from a civil-law system, the ability to craft bespoke evidence procedures prevents one side from being unfairly advantaged by procedural norms they are more familiar with.

At the same time, this flexibility carries responsibility. Arbitrators must exercise their discretion judiciously. An award that results from a process where evidence was handled unfairly – where one party was denied a reasonable opportunity to be heard – can be challenged and set aside under Section 34 of the Act. The Supreme Court has consistently held that while arbitrators enjoy wide latitude, the principles of natural justice set the outer boundary of that freedom.

What do you think? Given that arbitral tribunals are not bound by the Indian Evidence Act, do you believe the current framework provides sufficient safeguards to prevent misuse of procedural flexibility? And as disputes become increasingly digital and cross-border, should India consider enacting specific provisions for e-discovery and electronic evidence in arbitration?

References

1. https://www.indiacode.nic.in/handle/123456789/1978?view_type=browse
2. http://student.manupatra.com/Academic/Abk/Arbitration-and-ADR/CHAPTER-5.htm
3. https://jgu.edu.in/mappingADR/malleability-of-section-19-of-the-arbitration-and-conciliation-act-1996/
4. https://www.lexology.com/library/detail.aspx?g=137061bc-e438-42dd-b184-d0ab17ac68cd
5. https://corporate.cyrilamarchandblogs.com/2021/08/scope-of-judicial-interference-order-passed-by-an-arbitral-tribunal-under-section-27-of-the-arbitration-and-conciliation-act-1996/
6. https://blog.ipleaders.in/section-26-of-arbitration-and-conciliation-act-1966/
7. https://www.acerislaw.com/revised-2020-iba-rules-on-taking-evidence-in-international-arbitration/
8. https://blog.ipleaders.in/hot-tubbing-international-arbitration-leave-experts/
9. https://www.barandbench.com/columns/section-27-arbitration-conciliation-act
10. https://viamediationcentre.org/readnews/MTUxNw==/Navigating-Evidence-and-Discovery-in-Indian-Arbitration-A-Comprehensive-Guide
11. https://www.vaishlaw.com/additional-evidence-may-be-adduced-under-section-34-of-arbitration-and-conciliation-act-only-in-exceptional-circumstances/