Reliance Jio will file its Draft Red Herring Prospectus with SEBI this week, setting up what is expected to become India's largest initial public offering on record. The telecom and digital services subsidiary — which reported ₹1.65 trillion in revenue for fiscal 2025 — has been majority-owned by Reliance Industries since its commercial launch in 2016. The parent company trades at ₹1,340 per share in Mumbai, essentially unchanged since the DRHP announcement.

The filing moves the offering from speculation to mechanical process. SEBI's standard review timeline runs 90 to 120 days, which puts a potential listing window in October or November 2026, assuming no material queries. Reliance Industries holds roughly 66.3% of Jio; the DRHP will clarify whether this is a primary capital raise, a secondary stake sale by the parent, or a combination. The company has not disclosed a target size, but sell-side estimates range from $8 billion to $12 billion, which would exceed the ₹189 billion raised by Paytm's 2021 listing.

The offering matters because it forces a public mark on an asset that has been privately valued for years. Jio's 450 million subscribers make it the largest mobile operator in India by user count, and the company has layered fiber-to-the-home and enterprise connectivity onto that base. Mukesh Ambani has telegraphed that the telecom business would be spun out; the DRHP filing is the first hard proof. Reliance Industries currently trades at a 15% to 20% discount to sum-of-the-parts estimates, according to notes from Jefferies and Morgan Stanley, largely because the market treats Jio and the retail division as opaque subsidiaries rather than standalone entities with transparent capital structures.

The timing is disciplined. Indian equity markets have absorbed ₹2.1 trillion in primary issuance over the past 12 months, and institutional appetite for large-cap telecom has been consistent. Airtel, the number-two operator, trades at 12.5x forward EBITDA; Jio's valuation will likely be anchored to that multiple, adjusted for subscriber growth and ARPU trajectory. The DRHP will disclose fiscal 2026 financials, which analysts expect to show EBITDA margins above 48%, driven by tariff hikes implemented in late 2025.

Allocators should track three follow-on events. First, the SEBI review process itself — any material queries or delays will push the listing window and may signal friction over related-party disclosures or valuation methodology. Second, the analyst and investor roadshow, likely to begin in August, will set price discovery and reveal whether global long-only funds are willing to anchor. Third, Reliance Industries' annual general meeting on August 29 will include a vote on the ₹6 per share dividend announced in May; that meeting is also the likely forum for Ambani to provide clarity on post-IPO ownership and any lockup commitments.

The DRHP itself is the market event. The parent company's stock has not moved because the spin narrative has been priced in for 18 months; what changes now is the timeline and the transparency. The document will show whether Jio is raising capital for 5G densification or whether Reliance Industries is monetizing equity to reduce consolidated debt, which stood at ₹2.8 trillion as of March 2026.