QCBS Weighting for AI: Getting It Right

Finance said 70:30 because that is what the last consultancy used. The indentor said 80:20 because a vendor workshop slide said industry standard for AI. The chair said 60:40 so nobody could accuse them of ignoring price. Nobody opened the manual to see whether QCBS was available for this object at all.

Quality and Cost Based Selection is a method, not a religion. The Manual for Procurement of Consultancy and Other Services discusses it. Later Department of Expenditure instructions have also discussed QCBS for certain works and non-consultancy services, with conditions and ceilings that you must read in the live text. None of those instruments appoint 80:20 as the national weight for agent platforms. If your file says the weight is mandated, you have already over-claimed.

This guide is for the officer who must propose a method and a weight to competent authority. It is not legal advice. It will not tell you the correct ratio. It will tell you how to stop the ratio from becoming a superstition stapled to a matrix that still marks demos.

First question: is QCBS even on the table?

Read the instrument that governs this buy: GFR chapter, the goods manual, the consultancy and other-services manual, a works/NCS circular, a state code, a PSU manual, or a GeM workflow. Software sits awkwardly across those heads. An agent platform with implementation can look like other services. A boxed licence can look like goods. An SI-led programme can look like consultancy. The head you choose decides the method you may use. Do not pick the head to obtain the method you already wanted. Pick the head that describes the object, then use its method.

If QCBS is not available, stop. Harden eligibility and use the method you have. Inventing QCBS because AI feels special is how a file is returned, or worse, how a successful bidder is later unseated.

If QCBS is available, it is almost always two-envelope: technical scoring first, financial opening only for those who clear a published threshold, then a combined score. Do not open price while quality marks are still being argued.

What the weight is actually doing

A higher quality weight says residual risk and capability differences among responsive bids are large. A higher cost weight says remaining bids are close enough that rupees should finish the job. That is the whole philosophy. Write it in one sentence for this procurement.

If your matrix is still presentation, experience, innovation, a high quality weight simply amplifies theatre. Fix the matrix first. Weights cannot rescue rows that a slide can fill.

Common pairs you will hear — 70:30, 80:20, 60:40 — are precedents from other files, not laws. Using last year's consultancy weight for this year's isolated agent is laziness. Using a vendor's preferred weight is worse.

How to talk about weights without pretending they are mandated.

If this is true of the object	Weight conversation to have	What you must still do
Wrong architecture creates a data or safety incident	Argue for a quality weight that can actually beat a cheap reckless bid	Put those controls in the matrix with fail bands, not in adjectives
Several isolated Indian platforms look similar on artefacts	A more even pair, or even L1 after a hard filter, may be honest	Do not keep a theatrical 80:20 just to look modern
Implementation SI quality will make or break go-live	Score the team and method, not the brand of model	Keep commercial SI rates in the financial envelope
You cannot describe quality rows	You are not ready for QCBS or for L1	Delay the float

Formula hygiene

Publish the formula. Say how technical marks become a technical score, how the lowest price becomes a financial score, and how they combine. Say whether you use the formula in your manual or a stated variant. Hidden arithmetic is how losers allege cooking.

Publish the qualification threshold. A bidder at 69.5 percent of technical marks should know whether they see the financial opening. Do not invent the threshold after seeing names.

Do not let price leak. Two-envelope discipline is part of QCBS credibility. Collect devices if you must. The member who just wants to know the ballpark is asking you to corrupt the sitting.

Run a sensitivity table in the note: under the proposed weight, would a bid that fails isolation but is twenty percent cheaper still win? If yes, the weight is still a decoration or the isolation row is too light.

Integrity: who wrote the marks

CVC-facing risk is not only a brand-shaped specification. It is also a quality weight chosen after a preferred firm explained that they are stronger on quality. Decide the weight before the bid is floated. Decide the matrix before the bid is floated. Changing either after seeing bidders needs a corrigendum and a reason that is not a name.

Vendor workshops may educate. They may not author your ratio. If a consultant drafted both the matrix and the weight, disclose it and have an internal owner sign.

Objections you will hear — and what to do with them

These are the lines that stall the file. Answer them in the room, then put the answer in the note. A spoken answer without paper will be forgotten by the next officer.

Just put 70:30. Everyone understands it.

Everyone understands the numbers. Almost no one can say why they fit this object. Write the sentence. If 70:30 still fits, use it as a choice, not as a proverb.

High quality weight will be called anti-competitive.

A disclosed weight with a public matrix is more competitive than L1 on a private meaning. What is anti-competitive is a matrix only one brand can pass.

GeM cannot do QCBS, so this whole note is academic.

Check the live portal and buyer documentation before you repeat 2019 folklore. If the portal still cannot hold your booklet, write that as the reason for the channel you do use. Do not skip quality because a template is short.

We will decide the weight after we see how many bids come.

That is how a method looks cooked. Decide before float. You may cancel and re-float if the market fails. You may not nudge the ratio toward a name.

A fortnight to propose QCBS honestly

1. Days 1–3: confirm the procurement head and whether QCBS is available. Print the page.
2. Days 4–7: freeze the artefact matrix. Run the hosted-versus-isolated mock.
3. Days 8–10: pick a weight by writing the residual-risk sentence. Build a sensitivity table.
4. Days 11–14: competent-authority note, then publish method, threshold, formula and matrix with the bid.

How this shows up in the file

Subject: Proposal to adopt QCBS for the agent-platform procurement — weights for this file only.

Having read the applicable DoE manual / circular / organisational rules (copy placed opposite), QCBS appears available for this object. The proposed quality:cost pair is stated below as a choice for this procurement, not as a universal mandate. The technical matrix attached scores artefacts (isolation, training rights, tools, gates, logs, exit). A sensitivity table shows a cheap bid that fails isolation cannot win under the proposed pair.

Financial bids will remain unopened until technical minutes are signed. This note is not legal advice.

Worked arithmetic without a mandated ratio

Suppose two bids clear the technical threshold. Bid A scores higher on isolation artefacts and is dearer. Bid B is cheaper and weaker on logs. Under a quality-heavy pair, A can still win. Under a cost-heavy pair, B can win even if logs are merely adequate. That is the residual-risk sentence in numbers. If you cannot run that sentence on a napkin, you are not ready to pick a pair.

Do not publish a pair and then change the technical threshold after seeing names so that your preferred arithmetic appears. That is the integrity event. Cancel and re-float if the market failed. Do not edit the exam after the sitting.

Keep the napkin on the file. Audit does not need to agree with your pair. Audit needs to see that the pair existed before the names, that the formula was public, and that isolation could still beat a cheap reckless bid or that you consciously accepted it could not.

This article is a field guide for Indian public buyers, not legal, procurement, financial or audit advice. Confirm every citation against the live GFR compilation on doe.gov.in, the relevant DoE procurement manual, GeM terms, CVC guidance and your own counsel before a sentence enters a tender file.

How to put this in the RFP, not the preamble

A P2 Procurement who searches “QCBS weightage software” is usually drafting or scoring a bid. “QCBS Weighting for AI: Getting It Right” belongs in eligibility, the evaluation matrix, or a numbered annexure. If it only lives in the covering note, L1 will ignore it.

Pick weights you can defend for this object, then put the marks on artefacts. An 80:20 on a brochure matrix is still a brochure. QCBS weights are a choice you must publish before opening. Accuracy is a task plus a dataset, not a slogan. SLAs for agents must name tool-calls, human gates and log export — uptime alone is a hosting metric.

Do not let a vendor write the specification and then bid on it. Record unsolicited proposals. Pay for pilots that touch personal data. Write exit before you write go-live.

1. Move the control from the preamble into a scored or eligibility row.
2. Attach a one-page definition (accuracy, SLA, language, data handling).
3. Require an artefact in the technical bid, not a slide.
4. Extend the bid date if a corrigendum is material.
5. Minute the demo on your data, offline if you claimed air-gap.

Close this loop before the next CAB

Put “QCBS Weighting for AI: Getting It Right” on the next change-advisory or bid-opening agenda as a single line item with an owner. If it cannot earn a line item, it will not earn a control. The owner should be a P2 Procurement, not “the vendor.”

Revisit the item when the model, the GeM term, the region, or the SI changes. “QCBS weightage software” is not a one-time workshop. It is a watch item. Date the last check. Unsigned watch items are souvenirs.