A corrigendum is an amendment to a published tender — clarifying specs, changing deadlines, adjusting eligibility, or updating attached templates. Corrigenda are legally binding — your bid must comply with the LATEST corrigendum, not the original NIT.
What corrigenda typically change
- Technical specifications — modified brand-name list, updated tolerance ranges, new test-report requirements
- Deadlines — extension (or rarely, curtailment) of bid submission date
- EMD amount or format
- Eligibility — sometimes relaxed, sometimes tightened after a pre-bid meeting
- Financial bid format — new columns added, quantity revisions
- Attached templates — declaration formats, certification annexures
How to track corrigenda for a tender you're bidding on
- Bookmark the tender's source page (AIIMS, CPP portal, state portal)
- Check daily until 3 days before deadline — corrigenda often drop close to deadline
- Download and compare against the original NIT — diff by hand or with a PDF-diff tool
- Update your bid documents to reflect the new rules
- Print + retain both original NIT + all corrigenda — auditable trail if you dispute an eval outcome
Common corrigendum trap: silent scope change
Some corrigenda change the scope of supply subtly — "500ml pouches" becomes "1000ml pouches" in an amendment two weeks after original publish. Bidders who don't re-read miss this and quote wrong pack size. Always re-download and re-read the full corrigendum, not just skim the "highlights".