In short: In an item rate tender you quote your own rate against every item in the schedule. In a percentage rate tender the department has already printed the rates and you quote a single percentage above, below or at par on the whole package. The forms decide where your risk sits: item rate exposes you to quantity variation, percentage rate exposes you to the department’s own rate errors, which you cannot correct.

Open any Indian works tender and somewhere on the first page it will say which form it is. Most contractors skim past that line and go straight to the bill of quantities. It is the wrong order. That one line decides how you build your estimate, where your margin can hide, and which mistake will cost you on site eighteen months later.

What an item rate tender asks you to do

The department writes the schedule — item description, unit, estimated quantity — and leaves the rate column empty. You price each line yourself.

Evidence given by a consulting engineer and former Chief Engineer of the Madhya Pradesh Irrigation Department, recorded in a High Court judgment, describes the form in one sentence: an item rate tender is one in which a contractor is required to quote his price against each item separately, and the tenderer has to quote his rates for each and every item individually.

That freedom is the whole point. Earthwork with a short lead is cheap for you because your tippers are already on that stretch; the same contractor’s shuttering rate might be poor because he hires it. In an item rate tender you can price to your own strengths, and your bid total still competes.

The freedom cuts the other way too. Quantities in the schedule are estimates, and what gets executed is what gets paid. If you have put your margin into an item that later shrinks, the margin shrinks with it — and the rules on how far quantities can move before the rate itself is renegotiated are in the contract conditions, not the bid form.

What a percentage rate tender asks instead

Here the rates are already in the tender papers, worked out by the department from its own schedule of rates. You are not asked to price anything. You are asked for one number: the percentage you will accept above, below or at par with the entire schedule.

An arbitrator’s finding, reproduced in a Delhi arbitration matter, sets out the mechanics precisely. On the CPWD form used for percentage rate tenders, the quantities included in the tender are sacrosanct, because a bidder has to quote a single percentage above or below the rates already laid down in the tender papers as a package deal. The bidder works out the total value of his offer from the quantities in the papers and his own worked-out rates, and then quotes his percentage.

Read that again, because it contains the trap. You still have to do the full estimate. You just cannot publish it. Your entire commercial judgement is compressed into one figure applied uniformly to every line.

A PMGSY road dispute shows the same thing from the department’s side: the state prepares the abstract of estimate, and a bidder cannot make any change in the rates — the only right a bidder has is to suggest the percentage relatable to the rates prescribed in that estimate.

The two forms compared

What you are doing Item rate tender Percentage rate tender
Who fixes the rates You, item by item The department, before the tender is issued
What you quote A rate for every line One percentage on the whole schedule
Can you load one item Yes No — the percentage applies uniformly
Main exposure Quantity variation on the items carrying your margin A badly-priced item in the department’s own schedule
Comparison at opening Line-by-line scrutiny of rates One figure per bidder, quick to compare
Estimate work needed Full Full — you simply cannot show it

Where the money actually leaks

In a percentage rate tender, look hardest at the items with the largest value, not the largest count. If the department’s rate for, say, machine excavation in hard strata was fixed off an old schedule and your real cost with a hired excavator is above it, quoting “at par” already puts you under water on that line — and no other line can rescue it, because your percentage is the same everywhere. Work the rates back to your own cost before you decide the percentage, and be willing to walk if the schedule is stale.

In an item rate tender, the risk moves to quantities. Front-loading — a high rate on early items like site clearance and earthwork, a thin rate on later finishing items — improves your cash position early but leaves you badly placed if the job is curtailed or the finishing quantities balloon. Departments look for it, and an unbalanced bid can draw scrutiny at evaluation. Price to cost plus a defensible margin, and keep your rate analysis on file.

Both forms sit on the same contract. The Calcutta High Court has recorded that the general guidelines in CPWD’s General Conditions of Contract provide that the GCC applies to percentage rate tenders as also item rate tenders. So the clauses that decide your fate once work starts — measurement, delay, defect liability — do not change with the bid form. What changes is only how the price was arrived at.

Before you price either one

Confirm the form on the notice inviting tender, then check three things in this order. Whether your bid capacity clears the value at all. Whether the rates you are being handed, or the rates you will write, rest on quantities you believe. And what happens to an item that is not in the schedule at all, which is settled through the star rate mechanism rather than through your bid.

After award, the paperwork chain is the same either way — the work order sets the scope and dates, and every rupee you are paid flows from what is recorded in the measurement book. A strong rate in a weak measurement is worth nothing.

The bottom line

An item rate tender buys you control and hands you quantity risk. A percentage rate tender takes the pricing decision away and hands you the department’s rate risk instead, on a schedule you cannot edit. Neither is safer in the abstract. Read the form first, rebuild the estimate from your own costs in both cases, and let the number you quote reflect what the work costs you rather than what the paper says it should.

Looking for the next job to price? Browse live construction and equipment tenders across Indian states, and if winning it means adding a machine, compare equipment finance options before you commit to the rate.

Tender forms, schedules of rates and contract conditions vary by department and change over time, and the figures and clause references above are indicative. Confirm the current terms with the tendering authority, the tender document or an official source before you bid.