Basis of allotment in an Indian IPO

Mon, 11 May 2026 00:00:00 +0000

The basis of allotment is the SEBI-prescribed methodology by which the registrar to an issue of an Initial Public Offering decides which applicants receive how many shares, given that demand from each investor category routinely exceeds the shares reserved for that category. The basis of allotment is the procedural heart of the Indian IPO process. It converts an unprioritised pool of bids into a deterministic allotment file, governed by the SEBI (ICDR) Regulations, 2018 and a body of operational SEBI circulars dating to the introduction of book building in the early 1990s. The completed basis of allotment is published on the registrar website, the lead manager websites, and the stock exchange websites; it forms the legal record on which the depositories credit shares to allottees on T+2 and the listing approval is granted for T+3 trading.

How to check IPO allotment status on Zerodha

Mon, 11 May 2026 00:00:00 +0000

The IPO allotment status becomes available on T+1, the working day after the bid window closes, once the registrar to the issue finalises the basis of allotment and publishes the file feed to the exchanges and the brokers. As of mid-2026, under the SEBI T+3 listing regime introduced on 1 December 2023, the registrar publishes the basis of allotment by midnight on T+1, the depositories credit allotted shares on T+2, and trading commences on T+3 morning. This guide walks through the four channels through which you can check your allotment status, in roughly the order of speed and convenience.

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Basis of allotment in an Indian IPO

How to check IPO allotment status on Zerodha