A corrigendum (plural: corrigenda) is an official amendment or correction to a published government tender document. It supersedes the original document in the areas it covers and must be read as part of the tender. Bids submitted without accounting for a corrigendum may be declared non-compliant.
Corrigenda are common in government procurement — particularly for complex IT tenders where specifications evolve during the pre-bid query period. A single tender may have 2–5 corrigenda before the bid-submission deadline.
A corrigendum can change almost anything in the tender: submission deadline (most common — usually an extension), EMD amount, technical specifications, eligibility criteria, scope of work, evaluation criteria, price formats, or any annex document. The change can be minor (a typo correction) or major (a fundamental change in scope).
The risk of missing a corrigendum is significant. If a corrigendum changed the EMD amount and you submitted the original amount, your bid may be rejected. If a corrigendum clarified a technical criterion you thought you met, you may be disqualified. If a corrigendum extended the deadline and you submitted early, you might miss updated documents.
Corrigenda are published on the same portal as the original tender (GeM, GIL, state portal). On GeM, they appear as numbered amendments under the bid. On GIL, they are additional documents under the tender notice. The challenge is that no email notification is sent when a corrigendum is issued — you have to actively monitor.
The legal position is clear: once a corrigendum is published, it becomes part of the tender. Claiming you did not see it is not a valid grounds for post-award dispute. The obligation to monitor rests entirely with the bidder.
BidShakti checks GeM and nProcure daily for new corrigenda on every tender you are tracking or that appears in your discovery feed. When a corrigendum is detected, BidShakti: (1) downloads it automatically, (2) highlights what changed — deadline, EMD, eligibility, scope, evaluation criteria, (3) re-runs the AI analysis on the updated tender, and (4) updates the go/no-go verdict if the change affects it. You get an alert with a summary of exactly what changed.
Frequently asked questions
How often do tenders get corrigenda?
Complex tenders routinely have 2–4 corrigenda. Deadline extensions are the most common (60–70% of corrigenda). Eligibility clarifications are second. For tenders in Gujarat, GIL issues corrigenda on roughly 40% of all tenders.
What if I missed a corrigendum and already submitted my bid?
If the portal allows resubmission before the deadline, you can withdraw and resubmit with a corrected bid. If the deadline has passed, your bid will be evaluated against the corrigendum requirements. If your bid is non-compliant with a corrigendum change, it will likely be rejected.
Does BidShakti track corrigenda on all portals?
BidShakti currently tracks corrigenda on GeM (full coverage) and nProcure. We are expanding to nProcure and other state portals. For any portal, you can also paste a tender URL or reference number and BidShakti will fetch current documents including corrigenda.
Can a corrigendum change the evaluation method from QCBS to L1?
Legally, yes — though this is rare and often challenged. More commonly, corrigenda clarify or adjust the QCBS evaluation criteria rather than changing the method entirely. BidShakti flags any corrigendum that changes the evaluation method or criteria as a high-priority update.
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