You applied for an IPO. The subscription closed with 50x oversubscription. And you did not get an allotment — again. Sound familiar? You are not alone. Millions of retail investors apply for IPOs every month and come away empty-handed. But here is the thing: the allotment process is not random guesswork. It follows specific SEBI rules, and once you understand how it works, you can take steps to genuinely improve your chances. Here is the complete guide.

How Does IPO Allotment Work in India?
SEBI (Securities and Exchange Board of India) mandates a specific process for IPO allotment in the retail category. The key principle: every retail applicant gets one equal chance at one minimum lot — regardless of how many lots they apply for. This is different from the HNI (Non-Institutional Investor) category, where allotment is proportional.
Step 1 — Subscription Period Closes
After the IPO closes (typically 3 days), the registrar collects all valid applications and begins processing. Invalid applications (wrong UPI mandate, insufficient funds, duplicate PAN applications) are rejected first.
Step 2 — Oversubscription Calculation
The registrar calculates how many times the retail portion has been subscribed. For example, if 10 lakh lots are available for retail and 1 crore applications came in (each for 1 lot minimum), the subscription is 10x.
Step 3 — The Computerised Lottery
If the IPO is oversubscribed in the retail category, SEBI mandates a computerised draw of lots. The process ensures that the maximum number of unique applicants receive at least 1 lot — rather than giving larger applicants more shares.
Here is the key rule: in an oversubscribed retail category, every applicant who applied for even 1 lot gets exactly 1 lot if allotted — or nothing. Applying for more lots does NOT increase your chances of getting allotment in the retail category. It only increases your chances in the HNI category (above ₹2 lakh applications).
Step 4 — Refunds & Allotment
Allotment happens on T+6 (6 working days after IPO close). Refunds for unallotted applications are processed simultaneously via UPI or ASBA (Application Supported by Blocked Amount). Your bank account is unblocked automatically if you do not receive allotment.
Why You Don't Get Allotment Even After Applying
- Oversubscription: In a 50x oversubscribed IPO, roughly 1 in 50 retail applicants gets allotment — it is a lottery
- Invalid Application: UPI mandate not approved in time, wrong bank details, or PAN mismatch leads to rejection before the lottery
- Duplicate Applications: Applying from the same PAN on multiple accounts — SEBI rejects all applications from that PAN
- Cut-off Price Not Selected: If you bid at a specific price below the final cut-off, your application is rejected
Proven Strategies to Increase Your IPO Allotment Chances
1. Apply From Multiple Family Member Accounts
Each individual with a Demat account and PAN card counts as a separate applicant in the lottery. Applying from your spouse's, parents', or adult children's accounts gives each of them an independent chance. If a family of 4 applies, your collective probability of getting at least 1 allotment is significantly higher than applying from 1 account.
Important: Each application must have a unique PAN. Using the same PAN across multiple accounts will result in all applications being rejected.
2. Always Apply at Cut-Off Price
When you apply at cut-off price, your application remains valid regardless of where in the price band the final issue price is set. If you apply at a specific price (say ₹540 in a ₹530–575 band) and the cut-off is set at ₹575, your application is rejected. Always select 'Cut-Off Price' on your broker platform.
3. Apply in the Shareholder Quota (If Available)
Some IPOs reserve a portion for existing shareholders of the parent company. This category has far fewer applicants than retail, significantly improving your odds. See our dedicated guide on Shareholder Quota IPOs to understand how this works and which upcoming IPOs offer it.
4. Apply Early — Do Not Wait for the Last Day
While the lottery picks winners uniformly, applying early ensures your UPI mandate is approved in time. Last-day UPI mandate failures are the most common reason for application rejection. Apply on Day 1 or Day 2 of the IPO window.
5. Ensure UPI Mandate Approval
After you apply through your broker, you will receive a UPI mandate request on your UPI app (BHIM, Google Pay, PhonePe, Paytm, etc.). You must approve this mandate before the IPO closes. Check your UPI app notification and approve it. If the mandate expires unapproved, your application is invalid.
6. Apply for HNI Category for Large IPOs (Above ₹2 Lakh)
For heavily oversubscribed mainboard IPOs with strong fundamentals, applying in the HNI (Non-Institutional) category with more than ₹2 lakh ensures proportional allotment — you get shares proportional to your application size. The risk: your funds are blocked for 6 days and HNI allotment also has a minimum lot requirement.
How to Check Your IPO Allotment Status
Allotment status is available on T+6 (6 working days after IPO close) on the following platforms:
- BSE IPO allotment page: bseindia.com
- NSE IPO allotment page: nseindia.com
- Registrar website (Link Intime, KFin Technologies, Bigshare Services — mentioned in the IPO prospectus)
- Your broker app (Zerodha, Groww, Upstox, Angel One, etc.)
You will need your PAN number or application number to check status. Visit ipolyst.com for direct links to allotment status pages for each active IPO.
IPO Allotment Timeline — What Happens When
- Day 1–3: IPO subscription window open
- T+1: Subscription data published by exchanges
- T+6: Allotment finalised, refunds initiated
- T+7: Shares credited to Demat accounts of allottees
- T+8: Listing on NSE/BSE
Disclaimer
Disclaimer: This article is for educational purposes only and does not constitute financial advice. IPOLyst is not a SEBI-registered investment advisor. IPO allotment is subject to SEBI regulations and registrar processes. Always read the Red Herring Prospectus before applying for any IPO.