The simple way to compare bids looks like this. A department asks for three bids. Every bidder is asked for the same scope. They also quote the same set of materials. The delivery dates are the same. The contract terms match too. The bid prices are then sorted from low to high. The lowest bidder, or L1, is chosen.

This approach is used, and it can work well. It fits when the buying document is standard and clear. It also fits when each bid is truly a reply to the same need, under the same rules. In India, this method sits at the core of the L1 idea, and it shapes much of the public buying process.

Still, this is not the only method. For a lot of government buying, the simple ranking does not hold up. This ranking method is common in complex projects. It is also common in tech systems, professional services, and equipment where the full costs are not alike in every bid. In those cases, the numbers in the bids may not be a like-for-like match. So the review panel has to do extra work first. Only after that can a fair comparison be made.

If you want to know how departments manage bids that cannot be compared in a straight line, you need to look at their methods. You also need to see how those methods affect suppliers' pricing and bid structure. That matters most in procurement areas where you cannot just rank prices and stop there.

Why Bid Prices Are Sometimes Not Directly Comparable

Before examining the comparison methodologies, it is worth understanding precisely why prices in multiple bids are sometimes not directly comparable even though all bidders responded to the same tender.

Different technical interpretations of the same specification. An ambiguous or incomplete specification, discussed in the earlier blog on defective specifications, allows different bidders to price different scope interpretations while all claiming technical compliance. One bidder who interprets a specification to include commissioning and first-year maintenance will price higher than one who interprets the same specification to exclude those elements. Neither price is wrong on its own terms, but they are not comparable because they cover different scopes.

Different quality or performance levels within a permitted range. Some specifications define minimum performance thresholds rather than exact technical requirements, allowing bidders to offer solutions that meet the minimum or exceed it. A bid offering a pump that delivers the minimum specified flow rate is technically compliant and will be priced differently from a bid offering a pump that significantly exceeds the minimum at higher capital cost but lower energy consumption. These prices are not directly comparable because the delivered value is genuinely different.

Different delivery or execution timelines. When the specification allows bidders to propose their own completion timeline within a maximum permitted period, a bidder offering earlier completion may justify a premium over one offering completion closer to the maximum. Whether that premium is commercially rational depends on the value to the government of earlier completion, which the bid comparison must capture.

Different payment structures. Where bidders are permitted to propose alternative payment structures, a bid requiring a large upfront mobilisation advance alongside a lower total contract price is not directly comparable on price alone with a bid requiring no advance but a higher total price. The time value of money makes these offers genuinely different in financial terms.

Taxes, duties, and levies applied differently. Where bid prices are quoted exclusive of taxes and the applicable tax rates differ across items or across bidders with different tax positions, the pre-tax prices are not comparable without normalising for the tax liability. Similarly, where some goods attract import duties and others are domestically produced, the landed cost comparison requires accounting for the duty differential.

Different warranty and support commitments. Where the specification permits variation in warranty periods, service response time commitments, or support arrangements, two bids quoting the same headline price but offering different warranty terms are not economically equivalent. The bid with the shorter warranty effectively quotes a lower price for the same period of ownership.

The Normalisation Approach: Making Prices Comparable

Normalisation is the analytical process of adjusting bid prices to a common basis so that meaningful comparison is possible. It does not change the price any bidder has offered. It adjusts the evaluation basis so that like is being compared with like.

The normalisation methodology must be specified in the tender document before bids are received. A procuring entity cannot invent a normalisation methodology after opening bids, because this would give it the ability to adjust the comparison basis in ways that could advantage or disadvantage specific bidders post-hoc. The methodology must be known to all bidders before they submit, so they can price their bids with full knowledge of how the comparison will be conducted.

Tax and duty normalisation is the most common and most straightforward form of normalisation. When bids include different tax components or when some items are tax-exempt and others are not, the evaluation committee calculates the total tax liability for each bid and adds it to the base price to produce a tax-inclusive comparison price. This ensures that a bid with a low base price but high tax liability is not artificially ranked ahead of one with a slightly higher base price but lower tax liability.

For procurement involving imported goods, the comparison typically includes customs duty, countervailing duty or IGST, and port handling charges, producing a landed cost comparison rather than an ex-works or CIF price comparison. The procuring entity specifies whether the comparison will be on the basis of delivered price at the destination or landed cost at the port, and all bids are then normalised to the specified comparison basis.

Scope normalisation addresses the situation where bidders have priced different scope interpretations. The evaluation committee establishes the correct interpretation of the specification, identifies the scope elements that were included or excluded by each bidder differently, and adds the cost of missing elements or subtracts the cost of additional elements to produce an adjusted price that reflects each bidder's cost for the correctly interpreted scope.

This form of normalisation is more complex and more subjective than tax normalisation, because the cost of missing or additional scope elements must be estimated by the evaluation committee rather than simply read from bid documents. The committee typically uses rates from the BOQ of other bids, published schedule of rates, or market estimates to value the scope adjustments. The reasonableness of these adjustments is sometimes contested by bidders whose adjusted price differs significantly from their submitted price.

Performance level normalisation applies when bidders have offered solutions that exceed the minimum specification in ways that have quantifiable value to the procuring entity. A pump offering higher efficiency than the minimum specified delivers lower lifetime energy costs. If the tender's normalisation methodology specifies that efficiency above the minimum will be credited at the government's standard energy cost per unit, the higher-efficiency pump's adjusted comparison price accounts for this credit.

This form of normalisation is closely related to life cycle cost evaluation discussed in an earlier blog, but applies within a single evaluation exercise rather than as the primary evaluation methodology.

Quality and Cost Based Selection: The Weighted Evaluation Framework

It doesn’t only normalize prices when you buy professional services, consultancy, or complex systems. It offers a simple way to evaluate quality and price together. It mixes technical scores with bid price to form an overall result.

QCBS is the common name for this. It means quality- and cost-based selection. In QCBS, the review is split. First, you score the technical part. Next, you score the financial part. Then you blend both parts using set weights.

In many Indian government purchases for consultancy, QCBS often follows World Bank ideas. A typical setup gives the technical side most of the weight. The technical weight is often around 70 to 80 percent. The financial part usually gets the rest, about 20 to 30 percent.

QCBS financial marks are not made by a simple lowest price list. Each bid gets a score tied to where it sits versus the lowest evaluated bid. The lowest bid gets the top financial score, usually 100. A higher bid gets a lower score. The score comes from a relation to the lowest bid, using this approach: take the lowest bid price, divide by the bid price being scored, then multiply by 100.

A bid that is set at 10% above the cheapest bid does not get a 0 on the money part. Instead, it gets close to 91 points out of 100. If that money score counts for 30% of the total, then the gap between the top and bottom money scores can shrink to only a few points in the final result. In that case, a much stronger technical submission can still beat a higher price.

Each bidder has a total score that consists of two weighted portions. The technical score is multiplied by its weight of 30%, and the financial score is multiplied by its own weight. The two results are summed. The winner is the bidder with the best overall score, even if it didn’t submit the lowest price or the best technical score by itself.

Least Cost Selection: When Price Dominates Technical Thresholds

When the work is fairly routine and most well-qualified firms can deliver what is needed, the least cost selection approach uses a simpler rule. First, the bids are checked to see which ones pass a set technical cutoff. Then, among the bids that pass, the one with the lowest price is chosen.

This fits tasks with limited technical risk. It also fits cases where the main requirement is that the firm has the right papers and hands-on experience. Here, winning is not about showing a clearly better method. It is mainly about finding real savings between firms that can do the job well enough.

In LCS, the technical cutoff is a target score. It is set ahead of time, often about 75 out of 100. Any bid that lands above that line is treated the same for the final decision. The points a firm earns beyond the cutoff do not change the outcome. So a bid that scores 85 is handled the same as one that scores 94. The contract goes to the lowest-priced bid among the compliant ones.

Because of this, bidders should not spend too much to push the score far above the pass mark. If a proposal gets 94 when 76 would have passed, that extra work gives no added benefit. The better move is to put time into a technical package that meets the bar with clear confidence. Pair that with the lowest price you can offer while still being able to deliver the work.

Fixed Budget Selection: When the Price Is Given and Only Quality Competes

Fixed budget selection is applied only in certain cases. It fits when the buyer already has a firm and final budget for the work. The goal is to pick the best technical option that still fits that ceiling.

With FBS, the budget is shared in the notice. The bidders then send in their technical bids. They also state whether they can complete the work within the posted amount. From the bidders who say they meet the budget, the one with the top technical score is chosen.

There is no price scoring step. That is because the pay terms are the same for every bidder who qualifies.

This approach is not common in Indian public buying. Still, some groups do use it. In particular, some international development bodies use it for work where the value mainly comes from the team and the plan. The cost matters less in that setup.

The Abnormally Low Bid Problem in Non-Comparable Price Contexts

With normalization or a weighted mix, the issue of an abnormally low bid becomes harder than it is under plain L1 scoring.

In QCBS, a bid that sits much lower than the other bids can get a strong money score. Still, it must work with the technical score to form the final result. A very low money bid paired with a weak technical score may fail. This can happen because QCBS gives weight to technical merit. On the other hand, a very low money bid paired with a fair technical score can still win. This may occur even when the committee worries about whether the price can hold up in the long run.

The check for abnormally low bids works in QCBS just as it does in money-only cases. If the bid is far below the rest and also far under the procuring entity's own estimate, it can trigger doubts about whether the work or goods can actually be delivered. Then the committee may ask the bidder to submit a rate breakdown. The goal is to see if the numbers look workable. If the bidder does not convince the committee, the bid can be left out of the financial scoring step, even if it is the cheapest on paper.

For goods in a normalized price method, one component that is too low can hint at a different read of the scope. The bidder may treat some part of the scope as not needed, then price it that way. Whether the normalization catches this depends on what is found during the review. This is also why the rules for normalization matter. A solid method can make scope mix-ups show up through the normalization changes. A weak method may let the mismatch stay hidden and then carry into the comparison.

What This Means for How Suppliers Should Price Complex Bids

The way a tender evaluates bids changes how suppliers think about prices. That is why your pricing plan has to fit the stated evaluation rules. This fit is a key part of serious bid work.

Under QCBS, technical merit usually counts for about 70 to 80 percent. With that setup, a cheaper bid does not buy much extra value. Cutting the price by ten percent may move the overall score only slightly. But if you get that same ten percent by weakening your team or by trimming your plan, you can lose a lot on the technical side. So in QCBS, a sensible method is to set a price that supports good work that can hold up. Put more of your effort into the technical part of the bid, not into fine-tuning the numbers for price.

With LCS, the technical part works in a pass or fail way once you reach the limit. After you clear that line, the contest shifts to cost. In that case, you should aim to reach the technical threshold with as little waste as you can. Then you can bid lower to press the price advantage. Spending too much to make the technical write-up even better than the threshold will not pay back in LCS.

For goods where prices are compared using a normalized method, you need to know what the normalization will do to your number. This helps you target the parts where you truly have lower costs. If the rules add a premium for imported items and you propose a local option, your normalized ranking will look better than your stated price. If the rules also reward strong energy use and your product is notably efficient, it makes sense to reflect those strengths in your offer.

Maintaining a Record of Your Own Evaluation Position

When a bid uses a complex way to score proposals, it helps to keep a clear internal log of what you expect your place in the rankings to be. This supports your plan before you submit and also helps you review what happened after the award.

If you are putting in a QCBS bid, first work out your expected combined score at several price points. Do this across a set of financial bid levels so you can see how price and technical strength trade off in combined score terms. This is where you test ideas, like paying about ten percent more for a stronger team or paying about ten percent less with a leaner team. That trade is the main QCBS choice.

Once you get the award outcome, redo the scoring using the stated method and any evaluation results that were made public. This lets you pin down where you did better and where you fell short in the combined score. For example, if you were behind by two combined score points and the whole gap came from a lower financial score, even though your technical score matched the winner's, then the lesson is narrow. It points to a different pricing focus for the next similar bid. If instead you lost while also having a lower price, and the reason was that your technical score was well below the winner’s, then the takeaway is different. It signals a different fix.

Put that post-award review together with the award data work that was covered in the earlier posts, and you end up with a full set of evaluation insights. Over time, this shows which suppliers keep bidding in the same market each year but do not improve and which suppliers build better results that raise their chance to win.

Final Thought

Comparing prices in public buying is easy only if the bids are truly like-for-like. If they are not, extra steps are needed. A lot of public buying sits in that harder group.

For each call for bids, you have to figure out what method will be used. You also need to know what parts of the numbers will be adjusted. Or you need to know what weight each part gets. Then you must estimate where your own offer will land once the method is applied. That work is what makes bid planning feel professional, not just a matter of naming a low price.

A number that looks cheap on its own might stop looking cheap after the adjustments. A number that looks high by itself can still lead to a good total score in a QCBS setup if the technical part helps. What you submit as your bid price is not the final figure that gets compared. It is the raw input to the comparison method. If you know the method, you know how the match is judged.