Introduction
The Arbitration and Conciliation Act, 1996 stands as the cornerstone legislation governing alternative dispute resolution mechanisms in India. Over the years, the Act has undergone substantial amendments to align with international best practices and address emerging concerns regarding the independence and impartiality of arbitrators. Among these amendments, the introduction of Section 12(5) in 2015 marked a watershed moment in Indian arbitration jurisprudence. This provision, read alongside the Seventh Schedule, sets clear standards for arbitrator ineligibility, ensuring that individuals with certain relationships to the parties or the dispute cannot serve as arbitrators. Judicial interpretation of these rules has generated considerable discussion, particularly on whether a proposed arbitrator’s ineligibility affects the validity of the arbitration agreement or simply requires the appointment of an alternate arbitrator.

The Legislative Framework: Section 12(5) and the Seventh Schedule
Understanding Section 12(5) of the Arbitration and Conciliation Act
Section 12(5) of the Arbitration and Conciliation Act, 1996, as amended in 2015, establishes a categorical framework for determining arbitrator eligibility. The provision reads: “Notwithstanding any prior agreement to the contrary, any person whose relationship, with the parties or counsel or the subject-matter of the dispute, falls under any of the categories specified in the Seventh Schedule shall be ineligible to be appointed as an arbitrator: Provided that parties may, subsequent to disputes having arisen between them, waive the applicability of this sub-section by an express agreement in writing.”[1]
This statutory mandate introduced a paradigm shift in Indian arbitration practice. Prior to this amendment, parties enjoyed considerable autonomy in selecting arbitrators, even if those individuals maintained connections with one of the disputing parties. The amended provision curtailed this autonomy by establishing non-derogable standards of independence and impartiality. The phrase “notwithstanding any prior agreement to the contrary” underscores the mandatory nature of this provision, indicating that parties cannot circumvent these requirements through contractual arrangements made before disputes arise.
The Seventh Schedule: Categories of Ineligibility of Arbitrator
The Seventh Schedule to the Arbitration and Conciliation Act delineates specific relationships and circumstances that render a person ineligible for appointment as an arbitrator. These categories include situations where the arbitrator has a direct or indirect financial interest in the dispute, maintains employment or consultancy relationships with one of the parties, has previously advised either party on the dispute matter, or holds positions that could compromise neutrality. The Schedule represents Parliament’s recognition that certain relationships inherently create justifiable doubts regarding an arbitrator’s independence or impartiality, regardless of the individual’s actual intentions or conduct.
Judicial Interpretation: The Voestalpine Schienen GmbH Precedent
Background of the Voestalpine Case
The Supreme Court of India’s judgment in Voestalpine Schienen GmbH v. Delhi Metro Rail Corporation Limited[2] established foundational principles regarding arbitrator neutrality and the validity of arbitration clauses when the designated arbitrator becomes ineligible under Section 12(5). In this case, the contract between the parties contained an arbitration clause providing that disputes would be resolved by a sole arbitrator appointed by Delhi Metro Rail Corporation from a panel of retired or serving government engineers.
When disputes arose, the contractual mechanism for arbitrator appointment came under scrutiny. The petitioner challenged the panel-based appointment system, arguing that it compromised the neutrality requirement mandated by the amended Act. The respondent maintained that the arbitration clause itself became non-est once the designated arbitrator fell within the categories specified in the Seventh Schedule. This contention raised a fundamental question: does the ineligibility of a specific arbitrator invalidate the entire arbitration agreement, or does it merely trigger the need for appointing an eligible arbitrator?
The Court’s Reasoning and Observations
The Supreme Court emphatically rejected the proposition that arbitrator ineligibility renders the arbitration clause itself void. The Court distinguished between two distinct components of an arbitration agreement: first, the agreement to refer disputes to arbitration, and second, the procedural mechanism for appointing the arbitrator. The Court held that while the procedure specified in the agreement might become unenforceable due to Section 12(5), the fundamental agreement to arbitrate disputes remains valid and enforceable.
In delivering its judgment, the Court emphasized that the primary objective of the 2015 amendments was to institutionalize arbitrator neutrality as a non-negotiable requirement. The amendments sought to eliminate arrangements where parties could appoint arbitrators with inherent biases or connections to one side. However, this legislative intent did not extend to invalidating arbitration agreements themselves when the specified appointment mechanism became unworkable. Instead, such situations trigger the court’s jurisdiction under Section 11(6) of the Act to appoint suitable arbitrators who meet the eligibility criteria.
The Bharat Broadband Network Judgment: Reinforcing Mandatory Ineligibility
Facts and Contentions
The Supreme Court’s decision in Bharat Broadband Network Limited v. United Telecoms Limited[3] further clarified the mandatory nature of Section 12(5) and its implications for arbitrator appointments. In this case, the Chairman and Managing Director of Bharat Broadband Network Limited had appointed a sole arbitrator to adjudicate disputes arising from a contract. Subsequently, in light of the Supreme Court’s judgment in TRF Limited v. Energo Engineering Projects Limited, which held that persons holding positions similar to CMDs could not appoint arbitrators in disputes where they were parties, questions arose regarding the validity of the appointment and any subsequent actions taken by the arbitrator.
The Principle of De Jure Ineligibility
The Supreme Court in the Bharat Broadband Network case articulated the principle of “de jure ineligibility,” holding that Section 12(5) creates a statutory disqualification that operates by force of law. Once a person falls within any category specified in the Seventh Schedule, they become ineligible to act as an arbitrator, regardless of their actual independence or the parties’ confidence in their impartiality. The Court emphasized that this ineligibility cannot be cured retrospectively, and any awards passed by such ineligible arbitrators are liable to be set aside.
The judgment also addressed the proviso to Section 12(5), which permits parties to waive the ineligibility requirements through an express written agreement made after disputes have arisen. The Court clarified that such waiver must be explicit, informed, and made with full knowledge of the arbitrator’s ineligibility. A mere continuation of arbitration proceedings or failure to object immediately does not constitute valid waiver. This interpretation protects parties from unknowingly waiving their right to an impartial arbitrator while preserving party autonomy in appropriate circumstances.[4]
The Distinction Between Arbitration Agreement and Appointment Mechanism
Conceptual Framework
The judicial pronouncements in Voestalpine and subsequent cases have established a clear conceptual distinction between the arbitration agreement and the arbitrator appointment mechanism. The arbitration agreement represents the parties’ fundamental commitment to resolve their disputes through arbitration rather than litigation. This agreement embodies the parties’ choice of forum and their consent to be bound by an arbitral award. In contrast, the appointment mechanism constitutes the procedural framework through which arbitrators are selected and the tribunal is constituted.
This distinction proves crucial when the designated appointment mechanism becomes unworkable due to Section 12(5). Courts have consistently held that the invalidity or impossibility of executing the agreed appointment procedure does not vitiate the underlying arbitration agreement. Instead, it triggers the application of statutory default mechanisms provided under the Arbitration Act, particularly Section 11, which empowers courts to appoint arbitrators when the agreed procedure fails or becomes impossible to implement.
Practical Implications for Contracting Parties
This interpretive approach serves important practical purposes. It prevents parties from escaping their arbitration commitments by deliberately proposing ineligible arbitrators, thereby frustrating the arbitration agreement. It also ensures that disputes do not fall into a procedural limbo where neither arbitration nor immediate litigation is available. By preserving the arbitration agreement while invalidating only the non-compliant appointment mechanism, courts maintain the efficacy of arbitration as a dispute resolution tool while enforcing statutory safeguards for arbitrator neutrality.
The Appointment Process Under Section 11(6)
Judicial Intervention for Arbitrator Appointment
Section 11(6) of the Arbitration and Conciliation Act empowers the Chief Justice of the High Court or the Supreme Court, as applicable, to appoint arbitrators when parties fail to constitute an arbitral tribunal in accordance with the agreed procedure. This provision serves as a statutory safety valve, ensuring that arbitration agreements do not become unenforceable merely because the agreed appointment mechanism proves unworkable.[5]
When courts exercise jurisdiction under Section 11(6), they conduct a preliminary examination to determine whether a valid arbitration agreement exists and whether the agreed procedure has failed or become impossible to implement. In cases involving Section 12(5) ineligibility, courts verify that the proposed arbitrator falls within categories specified in the Seventh Schedule and, upon such finding, proceed to appoint eligible arbitrators. This judicial intervention is limited in scope and does not extend to adjudicating the merits of the underlying dispute, which remains the exclusive domain of the arbitral tribunal.
Criteria for Judicial Appointments
When appointing arbitrators under Section 11(6), courts consider several factors to ensure the appointee’s independence, impartiality, and suitability for the particular dispute. These factors include the arbitrator’s qualifications, experience in the relevant field, availability to devote adequate time to the proceedings, and absence of any relationships or interests that might compromise neutrality. Courts increasingly prefer appointing professional arbitrators or retired judges with specialized knowledge, particularly in complex commercial or technical disputes. The appointment process also takes into account any qualifications specified in the arbitration agreement, provided those qualifications do not conflict with Section 12(5) requirements.
The Waiver Mechanism: Scope and Limitations
Post-Dispute Waiver Under the Proviso to Section 12(5)
The proviso to Section 12(5) introduces a limited exception to the ineligibility rules, permitting parties to waive these requirements through an express written agreement made after disputes have arisen. This provision recognizes that once disputes materialize, parties possess better information about the arbitrator’s potential biases and can make informed decisions about waiving technical ineligibility. The temporal restriction ensures that parties do not unknowingly compromise their right to an impartial arbitrator through pre-dispute contractual provisions.
The waiver must satisfy stringent conditions to be effective. First, it must be made in writing and must explicitly reference the ineligibility under Section 12(5). General provisions in arbitration agreements acknowledging the arbitrator’s connections to one party do not constitute valid waivers. Second, the waiver must demonstrate that both parties possessed full knowledge of the specific ineligibility grounds and nevertheless chose to proceed with that arbitrator. Third, the waiver must be made voluntarily, without coercion or undue influence from either party.[6]
Judicial Scrutiny of Waiver Claims
Courts have adopted a strict approach when examining claims of waiver under the proviso. Mere participation in arbitration proceedings after appointment does not constitute waiver, nor does failure to object immediately upon discovering the ineligibility. The rationale for this stringent standard lies in the fundamental importance of arbitrator neutrality to the integrity of the arbitration process. Courts recognize that parties might continue with arbitration proceedings for various strategic or practical reasons, including the desire to avoid delays, without intending to waive their right to challenge the arbitrator’s eligibility subsequently. Therefore, only explicit, informed, and documented waivers receive judicial sanction.
Implications for Government Contracts and Public Sector Arbitrations
Challenges in Public Sector Arbitration Clauses
The introduction of Section 12(5) created particular challenges for arbitration clauses in government contracts, which traditionally designated senior government officials as arbitrators or empowered them to appoint arbitrators. Many such clauses named specific positions such as Chief Engineers, Principal Secretaries, or Chief Executive Officers of government authorities as arbitrators. Following the 2015 amendments, these provisions became problematic because such officials typically maintain relationships with one of the contracting parties that fall within the Seventh Schedule’s ineligibility categories.
The Voestalpine judgment specifically addressed this issue in the context of Delhi Metro Rail Corporation’s practice of maintaining panels of retired or serving government engineers for arbitrator appointments. The Court held that even retired government employees might be ineligible if they maintain connections with the government entity that could reasonably create doubts about their independence. This ruling prompted government departments and public sector undertakings to revise their standard arbitration clauses and develop more neutral appointment mechanisms.[7]
Developing Compliant Arbitration Frameworks
In response to these judicial developments, government entities have adopted various approaches to ensure compliance with Section 12(5). Some have established panels of independent arbitrators with no connections to either party. Others have agreed to institutional arbitration under recognized arbitration institutions that maintain rosters of qualified arbitrators. Still others have modified their contracts to provide for court-appointed arbitrators under Section 11(6) when disputes arise. These adaptations reflect the evolving understanding that government entities, despite their sovereign character, must adhere to the same neutrality standards applicable to private parties in arbitration.
International Perspectives and Comparative Analysis
UNCITRAL Model Law Influence
The 2015 amendments to the Arbitration and Conciliation Act, including the introduction of Section 12(5), drew inspiration from the UNCITRAL Model Law on International Commercial Arbitration and international arbitration standards emphasizing arbitrator independence and impartiality. The UNCITRAL Model Law establishes that arbitrators must be independent and impartial, and parties have the right to challenge arbitrators when circumstances exist that give rise to justifiable doubts about these qualities. India’s Seventh Schedule approach represents a more prescriptive implementation of these principles, specifying concrete categories of relationships that create ineligibility rather than relying solely on case-by-case assessments.[8]
Comparative Jurisdictional Approaches
Different jurisdictions have adopted varying approaches to arbitrator eligibility and disclosure requirements. Some jurisdictions, like England and Singapore, rely primarily on disclosure obligations and party challenges rather than categorical ineligibility rules. Arbitrators must disclose circumstances that might reasonably question their independence or impartiality, and parties may challenge appointments based on these disclosures. Other jurisdictions, including certain civil law countries, maintain more rigid ineligibility rules similar to India’s approach. The Indian framework represents a middle path, combining categorical ineligibility rules with provisions for post-dispute waiver, thereby balancing the need for clear standards with party autonomy.
Practical Considerations for Arbitration Agreements
Drafting Compliant Arbitration Clauses
The judicial interpretation of Section 12(5) carries significant implications for drafting arbitration clauses in commercial contracts. Legal practitioners must ensure that arbitration clauses do not designate specific individuals or positions that may fall within the Seventh Schedule’s categories of ineligibility for arbitrators. Instead, clauses should provide for neutral appointment mechanisms, such as reference to institutional arbitration rules or procedures for appointing independent arbitrators who satisfy the requirements of Section 12(5). When parties wish to specify qualifications for arbitrators, these specifications must be carefully drafted to avoid creating pools of potentially ineligible candidates.
Modern arbitration clauses increasingly incorporate multi-tiered appointment procedures with built-in safeguards. For example, clauses might provide for direct party appointment as the primary mechanism, with fallback provisions for institutional appointment or court appointment if the primary mechanism fails. Such clauses might also include express acknowledgments that all appointments remain subject to Section 12(5) requirements, thereby preventing arguments that parties intended to circumvent statutory eligibility standards.[9]
Managing Ongoing Arbitrations
For arbitrations that were initiated before the 2015 amendments or where ineligibility issues arise during proceedings, parties and tribunals face complex procedural questions. The Supreme Court has held that Section 12(5) applies even to arbitrators appointed before the amendments came into force, meaning that ongoing arbitrations might require reconstitution of tribunals if existing arbitrators become ineligible under the new standards. This principle creates potential disruption but serves the overarching policy of ensuring arbitrator neutrality. Parties must remain vigilant throughout arbitration proceedings to identify potential ineligibility issues and raise timely objections, as delayed challenges might be viewed unfavorably by courts.
Conclusion
The interpretation of Section 12(5) of the Arbitration and Conciliation Act, 1996, as articulated through landmark judgments including Voestalpine Schienen GmbH and Bharat Broadband Network Limited, establishes a clear and pragmatic framework for addressing arbitrator ineligibility. The fundamental principle emerging from these decisions is that the ineligibility of a proposed arbitrator under Section 12(5) and the Seventh Schedule does not invalidate the arbitration agreement itself. Instead, such ineligibility affects only the appointment mechanism, triggering the application of default statutory procedures for appointing eligible arbitrators.
This interpretive approach serves multiple important objectives. It preserves the efficacy and enforceability of arbitration agreements while ensuring compliance with mandatory neutrality standards. It prevents parties from frustrating arbitration commitments through technical objections about appointment procedures. Most importantly, it advances the legislative intent behind the 2015 amendments by institutionalizing arbitrator independence and impartiality as non-negotiable prerequisites for valid arbitration.
The judicial pronouncements discussed in this analysis reflect India’s evolving arbitration jurisprudence, which increasingly aligns with international best practices while addressing domestic realities. The mandatory nature of Section 12(5), subject only to informed post-dispute waiver, represents Parliament’s considered judgment that arbitrator neutrality constitutes a fundamental requirement that cannot be compromised through private agreement. The courts’ consistent enforcement of this principle, even in cases involving long-standing commercial practices or government contracts, demonstrates judicial commitment to maintaining the integrity of the arbitration process.
For practitioners, these developments necessitate careful attention to arbitration clause drafting, proactive compliance with eligibility requirements, and timely identification of potential ineligibility issues in ongoing arbitrations. The clear separation between arbitration agreements and appointment mechanisms provides a stable framework for resolving disputes when designated procedures become unworkable. As Indian arbitration law continues to mature and evolve, the principles established in these landmark cases will undoubtedly continue to guide both parties and courts in ensuring fair, impartial, and effective arbitration proceedings.
References
- The Arbitration and Conciliation Act, 1996, Section 12(5). Available at: https://www.indiacode.nic.in/bitstream/123456789/1978/3/a1996-26.pdf
- Voestalpine Schienen GmbH v. Delhi Metro Rail Corporation Limited, (2017) 4 SCC 665. Available at: https://indiankanoon.org/doc/98679804/
- Bharat Broadband Network Limited v. United Telecoms Limited, (2019) 5 SCC 755. Available at: https://indiankanoon.org/doc/88491207/
- “BBNL Judgment: On the Impartiality and Independence of Arbitrators,” Bar and Bench, May 17, 2019. Available at: https://www.barandbench.com/news/bbnl-judgment-on-the-impartiality-and-independence-of-arbitrators
- Section 12 in The Arbitration and Conciliation Act, 1996. Available at: https://indiankanoon.org/doc/16912364/
- “Section 12(5) Of Arbitration & Conciliation Act Which Deals With Ineligibility Of Appointment As Arbitrator Is A Mandatory & Non-Derogable Provision: Supreme Court,” LiveLaw, January 22, 2021. Available at: https://www.livelaw.in/top-stories/ineligibility-of-appointment-arbitrator-supreme-court-168762
- “Supreme Court on Independence and Impartiality of Arbitrators,” IndiaCorpLaw Blog. Available at: https://indiacorplaw.in/2017/03/supreme-court-on-independence-and.html
- “Independence and Impartiality of Arbitrators Under Section 12(5): Broader Applicability?” Lexology, March 2, 2022. Available at: https://www.lexology.com/library/detail.aspx?g=78071b78-36d3-44cb-820d-6b35637cb2e1
- “Section 12 of the Arbitration and Conciliation Act, 1996,” Milon K. Banerji Centre for Arbitration Law, NALSAR University of Law. Available at: https://mkbac.nalsar.ac.in/section-12-of-the-arbitration-and-conciliation-act-1996/
Authorized by Rutvik Desai



