The Complete Guide to IPO Allotment: Basis of Allotment, Registrar Tracking, and UPI Mandate Execution
Step-by-step walkthrough of how registrar algorithms allocate shares during heavy oversubscription, how UPI liens are released, and how to verify status instantly.
Abhishek Chaubey
How the Basis of Allotment Is Finalized
When the retail portion is oversubscribed, SEBI guidelines dictate a computerized lottery system ensuring as many unique applicants as possible receive at least one minimum lot. Applying for multiple lots in the retail category during oversubscription does not increase allotment odds.
Registrars vs Exchanges
Registrars such as Link Intime, KFin Technologies, and Bigshare are responsible for validating bid applications against PAN records, eliminating duplicates, and executing the lottery draw under exchange supervision.
Handling Delayed UPI Mandate Revocations
If you are not allotted shares, your bank is mandated to release the UPI block on or before the unblocking deadline. If your funds remain blocked beyond the SEBI-prescribed unblocking deadline (typically T+3 working days from basis of allotment finalization), raise a ticket with your ASBA bank mentioning the application number.
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