IPO Listing Process in India: Step-by-Step T+3 Timeline Guide
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Understanding the IPO Listing Process in India

Written by Jainam Resources resources.jainam

Last Updated on: September 15, 2026

Overview

The IPO listing process in India follows a regulated sequence: DRHP filing with SEBI, SEBI review and observations, RHP filing, roadshow, subscription (at least 3 working days), allotment (T+1 working day from close), and NSE/BSE IPO listing (T+3 working days from close). SEBI reduced the listing timeline from T+6 to T+3 working days, mandatory for public issues from December 1, 2023. The full IPO process in India from internal preparation to listing day is indicatively 12 to 18 months, not a prescribed regulatory timeline. Understanding the process prevents two common mistakes: treating every IPO as a guaranteed listing gain and missing the subscription window because of confusion about the timeline.

Key Takeaways

  • T+3 IPO timeline (mandatory December 1, 2023) to allotment T+1, NSE IPO listing and BSE IPO listing on T+3.
  • Anchor investors: minimum ₹10 crore application; 50% at 90-day lock-in. SEBI reviews disclosure compliance, not investment merit.
  • Oversubscription doesn’t guarantee a positive listing.

The IPO Listing Process: Stage-by-Stage

StageWhat HappensKey Fact
Pre-IPO PreparationGovernance cleanup: promoter entity structures, related party transaction disclosures, board composition (audit committee, independent directors, company secretary), objects-of-issue clarity.Takes 6 to 12 months; governance gaps, not missing financials, are what generate SEBI observations.
DRHP FilingDraft Red Herring Prospectus filed with SEBI; issuer appoints SEBI-registered BRLM, registrar to issue.SEBI IPO guidelines benchmark: 30 days from complete DRHP or 15 days from satisfactory clarification replies; SEBI’s response is a set of disclosure observations, not an IPO approval.
SEBI ObservationsSEBI reviews regulatory compliance and disclosure requirements; issuer and BRLM incorporate required changes.SEBI doesn’t evaluate investment merit; the SEBI IPO approval framework is a disclosure-compliance review, not an endorsement.
RHP FilingRed Herring Prospectus filed with ROC (Registrar of Companies) and stock exchanges.Observation letters have an applicable validity period; SEBI granted a one-time extension for certain letters expiring in 2026
Roadshow & Anchor AllotmentInstitutional roadshows; anchor investors allotted shares one business day before IPO opens.Anchor investors must apply for a minimum of ₹10 crore per application (mainboard book-built IPO); 50% of anchor allocation: 90-day lock-in; remaining 50%: 30-day lock-in.
Price Band & SubscriptionPrice band announced; IPO open for subscription for at least 3 working days.Applications via UPI mandate (up to ₹5 lakh) or ASBA; funds blocked and released if not allotted.
IPO Allotment ProcessRetail: lottery (draw of lots) when oversubscribed; QIB and NII allocation rules depend on category and issue structure.Under T+3 framework: allotment confirmed on T+1 working day from IPO close.
IPO Listing DaySpecial Pre-Open Session: 9:00-9:45 AM (bids/asks collected, no matching); 9:45 AM (opening price); 9:55-10:00 AM buffer; normal market.NSE IPO listing and BSE IPO listing both on T+3 working day from close.

*Source: SEBI ICDR Regulations 2018; SEBI August 2023 circular on T+3 framework (mandatory from December 1, 2023); NSE India listing process.

What Investors Need to Know Before Applying?

Before submitting an IPO investment application:

  • Check your Aadhaar-linked mobile number is active (needed for UPI OTP block)
  • Apply through UPI mandate (up to ₹5 lakh) or ASBA from your registered bank account
  • The IPO allotment process for retail is by lottery; when oversubscribed, you may get allotted fewer lots than you applied for, or none
  • Under the T+3 framework, allotment is confirmed on T+1 from IPO close; funds are unblocked the same day if not allotted
  • Grey market premium (GMP) may indicate pre-listing sentiment but isn’t a reliable predictor of IPO listing day performance or post-listing direction.

After IPO listing day:

  • Any listing premium is on the allotted lot amount, not on the full application value blocked during subscription
  • An IPO can be 80x subscribed and still open below issue price if sentiment has shifted between subscription close and IPO listing day
  • The IPO application decision (apply or don’t) and the post-listing hold decision (keep or sell) require different analytical frameworks; most IPO investment losses come from applying the application logic to the post-listing hold decision.

Open demat account at Jainam Broking through Aadhaar-based eKYC for IPO investment with integrated UPI mandate, live subscription tracking, and T+1 allotment notification

Common Challenges in the IPO Listing Process

  • SEBI regulatory observation cycles extend the IPO timeline when disclosure issues, governance gaps, or objects-of-issue clarity problems surface.
  • Companies that resolve these before DRHP filing move through SEBI review faster. The observation letter has an applicable validity period; spending it resolving avoidable issues reduces the window to wait for better market conditions before listing.
  • Post-listing compliance isn’t optional. It kicks in on listing day: quarterly results within 45 days of quarter close (60 days for the last quarter), specified material events within 24 hours for specified categories under SEBI LODR.
  • Budget systems and headcount for this before the IPO listing process begins. Issuers who treat this as an afterthought consistently miss their first compliance deadlines.

Conclusion

The IPO listing process runs in the same sequence as the IPO process in India for every mainboard public issue. What varies is how efficiently each company moves through it. The SEBI IPO approval framework is a disclosure-compliance review; the IPO listing day outcome is a market event. These are two separate things. Treat them separately.

Read More of Our Blogs:

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Read more: What is Initial Public Offering (IPO) and How It Helps Companies Raise Capital?
Read more: Best Mining Sector Stocks in India for Long-Term Investment

Frequently Asked Questions

Indicatively, 12 to 18 months from internal preparation to listing; actual duration depends on governance readiness, and the number of SEBI observation cycles the DRHP generates.

Resolve governance issues, related party disclosures, and objects-of-issue clarity before DRHP filing; the governance cleanup, not the financial audit, is what determines how many SEBI observation cycles you’ll face.

Yes; SEBI ICDR Regulations 2018 specify eligibility conditions for the public issue process, including track record, net tangible assets, and distributable profits (or the QIB route); verify current thresholds with a SEBI-registered merchant banker.

DRHP with prescribed financial history disclosures under applicable ICDR provisions, objects of issue, risk factors, and promoter disclosures; SEBI-registered BRLM and registrar to issue required.

Access to companies at their initial public valuation; oversubscription can indicate demand but doesn’t guarantee a positive listing; long-term IPO investment returns depend on business quality and entry valuation, not subscription data.

SEBI reviews the DRHP and issues regulatory observations; SEBI IPO guidelines specify eligibility conditions, disclosure standards, and IPO timeline benchmarks. SEBI evaluates disclosure compliance, not investment merit.

The exchange facilitates the listing application, assigns the trading symbol, and manages the Special Pre-Open Session on IPO listing day: 9:00-9:45 AM bid collection, 9:45 AM price discovery, 9:55-10:00 AM buffer before normal market.

Jainam’s KYC-verified demat account provides IPO investment through UPI mandate, live subscription data by investor category, and T+1 allotment notification; open demat account at Jainam Broking through Aadhaar-based eKYC.

Disclaimer

This blog is for general informational and educational purposes only and does not constitute financial, investment, tax, or legal advice. The information is based on publicly available sources and market understanding at the time of writing and may change due to global developments. Past performance of markets during geopolitical events does not guarantee future results. Readers are encouraged to conduct their own research and consult qualified professionals before making investment decisions. Jainam Broking does not provide any assurance regarding outcomes based on this information.

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