Sidley Austin Advises Syndicate on NSE's Landmark $2.36 Billion IPO and BSE Listing

International law firm Sidley Austin served as international legal counsel to the book-running lead managers (BRLMs) and the marketing book-running lead manager on the approximately $2.36 billion initial public offering (IPO) of the National Stock Exchange of India Limited (NSE).

The landmark transaction concluded with the exchange's equity shares officially listing on the BSE on September 24, 2026. To date, the offering represents India's largest public issue of 2026, the second-largest IPO in Indian market history, and the largest-ever public market debut by an Indian financial services institution. At the final offer price of ₹1,785 per share, the transaction valued the exchange at approximately $46 billion.

Offer Structure and Advisory Consortium

The public issue was structured entirely as an Offer for Sale (OFS) of up to 14,89,05,525 equity shares of face value ₹1 each, offloaded by existing shareholders. Because the issuance consisted purely of secondary sales, NSE received no proceeds from the offering.

The Sidley cross-border team advising the managers was led by partners Manoj Bhargava and Sam Gandhi, alongside team members Rachna Talati, Dhanush Dinesh, Oindree Bandyopadhyay, Siddharth Urs, and legal manager Taran Narula, with additional cross-practice support spanning capital markets, investment funds, tax, and international arbitration.

Key Underwriters and Counsel:

• Domestic Legal Counsel to Lead Managers: Khaitan & Co
• Legal Counsel to the Issuer (NSE): Cyril Amarchand Mangaldas (domestic counsel) and Latham & Watkins (international counsel)
• Marketing Book-Running Lead Manager: SBI Capital Markets
• Book-Running Lead Managers: Kotak Mahindra Capital, JM Financial, Morgan Stanley, Citigroup, HSBC, J.P. Morgan, Axis Capital, HDFC Bank, ICICI Securities, Anand Rathi, Avendus, DAM Capital, Equirus Capital, IDBI Capital, IIFL Capital, Motilal Oswal, Nuvama, Pantomath, and 360 ONE WAM
• Registrar to the Issue: MUFG Intime India Pvt. Ltd.

Resolution of Regulatory Bottlenecks

The milestone listing brings closure to an extensive regulatory saga dating back to 2016, when NSE first filed draft documents that were subsequently stalled by investigations into systems architecture, co-location facilities, and dark-fibre connectivity.

The critical breakthrough arrived after the Securities and Exchange Board of India (SEBI) granted a no-objection certificate and subsequently reached a total settlement of ₹1,491.21 crore regarding the co-location proceedings, clearing the final legal overhangs. NSE filed its Draft Red Herring Prospectus (DRHP) on June 17, 2026, and received SEBI's observation clearance in early September.

Key Offering Timelines:

• Anchor Investor Allocation: September 16, 2026 (raising ₹6,746.18 crore)
• Public Bidding Window: September 17 to September 21, 2026
• Basis of Allotment: September 22, 2026
• BSE Trading Debut: September 24, 2026

Significance for the Indian Market

Incorporated in 1992, the NSE is the world's largest equity derivatives exchange by contract volume and India's dominant cash equity bourse. As of mid-2026, it serviced over 129 million unique investors across more than 261 million registered accounts, hosting over 3,000 listed companies with a collective market capitalization exceeding ₹474 trillion.

The exchange's public listing on rival BSE provides institutional and retail investors with transparent direct exposure to the structural growth of India's capital markets infrastructure, brokerage ecosystem, and algorithmic trading expansion.

Tags: National Stock Exchange BSE SEBI Capital Markets Sidley Austin Kotak Mahindra Capital