India’s GDP Rebase: What Changed and How to Read the Growth Number

Original Lens and publication context

India rebuilt the way it measures GDP. A former official says the new number was cooked. He is wrong about that. The real weak spot sits somewhere else, and almost nobody is looking at it.

• India replaced its GDP measuring system in February 2026, and last year’s economy was re-counted about seven percent smaller.
• A former finance secretary says real growth was near zero rather than 7.8 percent, but his sum mixes two different measuring sticks.
• The dates settle that argument: the big cut landed in February, six months before the number it is accused of flattering.
• The real weak spot is the price adjustment, which says prices rose 2.33 percent while factory-gate prices rose about nine percent.
• Official real GDP growth was 7.8 percent. The source’s separate real-income estimate is not established by the official release and is not used as a verified finding.

1 WHAT ACTUALLY HAPPENED

On 31 August the government said India’s economy grew 7.8 percent. That covers April to June 2026. It beat every forecast on the street.

Within two days a fight broke out over the number.

Subhash Chandra Garg is a former finance secretary. He pointed at one figure. Last year’s April-June economy was first reported at 86.05 lakh crore rupees. Today the same quarter is shown as 80 lakh crore rupees. That is about seven percent smaller.

His point was simple. Shrink last year, and this year looks better. Measure this year’s 88.27 lakh crore against the old 86.05 figure, and growth in money terms falls to 2.6 percent. Real growth would sit near zero.

The statistics ministry answered on 2 September. It said the two figures come from different systems. You cannot subtract one from the other.

One of them is right. This note works out which.

2 THE DATES SETTLE THE FIRST ARGUMENT

Follow one number. Last year’s April-June economy, in money terms.

The number moved four times. Only one move was large, and it was not the last one.

Look at the size of each step.

One. The big cut is the first one. About seven percent. It happened in February 2026.

Two. The step on 31 August was 80.44 to 80.00. That is half a percent.

For the manipulation story to work, the cut has to be recent and quiet. It was neither.

The new system was announced in November 2024. The statistics secretary named both the launch date and the base year at that time, on the record. It launched in February 2026, on schedule. That is six months before the number now in dispute.

A half-percent step cannot create seven points of growth.

We reject the claim that the number was manufactured. The dates do not allow it.

3 WHAT THE GOVERNMENT DID NOT ANSWER

The ministry answered the arithmetic. It stopped there. The harder question is still open.

The new system says two things at the same time.

One. The economy is about seven percent smaller than we used to think.

Two. It has been growing faster than we used to think.

Last year’s April-June growth used to read 7.8 percent. Under the new system it reads 6.9 percent. That downward change is exactly what makes this year’s 7.8 percent look like a pickup.

The yearly numbers moved the same way. FY26 now reads 7.8 percent. FY25 reads 7.2 percent. FY24 reads 7.3 percent. Levels down, growth rates up, across the board.

Both things can be true together. A smaller economy can grow faster. But that pairing is a strong claim. It needs to be shown sector by sector, not asserted. Saying the old number is dead is not the same as proving the new one is alive.

The 31 August official release scheduled the comprehensive Sources and Methods publication for September 2026. Until outsiders can walk the whole back series with the same rulebook, this stays unproven rather than wrong.

Figure 01 · Conceptual framework

From nominal values to real value added

4 THE PRICE PROBLEM, WHICH IS THE REAL STORY

This is where we would spend our time.

Here are the two published numbers.

Money. The economy grew 10.3 percent, to 88.27 lakh crore rupees.

Real. The economy grew 7.8 percent, to 81.36 lakh crore rupees.

The gap between them is the deflator. It works out to about 2.33 percent. The accounts are saying prices across the whole economy rose 2.33 percent between April-June 2025 and April-June 2026.

Now set that against the price data everyone else saw in the same quarter.

The national accounts found less inflation than any household or any factory did.

This is not automatically wrong. GDP prices are not wholesale prices. The weights are different. Services are a large share of India and their prices moved less than fuel. A gap is expected.

The direction is what troubles us.

The useful question is whether the output and input volumes, weights and price indices support the estimate. The input-price comparison alone does not answer it.

5 WHAT INDIA PRODUCED VERSUS WHAT INDIA EARNED

There is a second number sitting in the same release. Almost no headline carried it.

Output. Real GDP grew 7.8 percent. That is how much stuff India made.

Income. Real gross domestic income grew about 3.2 to 3.6 percent. That is how much India actually kept.

The gap is what India paid the rest of the world for imports. Mostly oil. Prices went up, so more rupees left the country for the same barrels.

Production rose. Income rose at about half that speed.

A country can produce more and still be poorer. The barrels cost more this year.

For anyone selling to Indian households, the income number is the one that matters. Not the headline.

6 HOW MUCH ANY FIRST NUMBER IS WORTH

Very little. The government’s own record is the best evidence for this.

Revisions run in both directions. That is the case against manipulation and against the headline at the same time.

Yearly numbers move as much. The gap between the first yearly guess and the final one has run 1.1 points low in one year and 1.9 points high in another.

A yearly number takes about three years to settle. The final reading for 2026-27 arrives in 2029.

There is a reason for this. Quarterly figures are not measured output. They are built by scaling up indicators. Company results, tax collections, factory indexes, railway freight. The actual output data arrives much later. The statistics secretary said as much this week.

One checking step has also been removed. The third revision has been discontinued from FY22 onwards. Fewer versions means fewer chances to catch an error in public.

So treat 7.8 percent as a number with a band around it. Roughly one and a half points either way. It is not a decision-grade figure.

7 WHERE THIS TOUCHES MONEY

Four places.

One. Debt looks worse on paper. Debt is measured against the size of the economy. The economy is now measured about seven percent smaller. The same debt against a smaller base is a bigger ratio. The same goes for the fiscal deficit. Nothing changed in the real world. The yardstick moved. Rating agencies and bond desks will do this arithmetic even if nobody announces it.

Two. Consumer companies will not feel 7.8 percent. Income grew at half the speed of output. Households are paying the difference through fuel and transport. Volume growth in results will read weaker than the GDP headline suggests. Expect a gap between what the data says and what sales say.

Three. The RBI has less reason to cut. A 7.8 percent print removes the argument for support. The ten-year sits near 6.95 percent. The August minutes read hawkish. This number pushes a rate cut further out, not closer.

Four. The stock market has already told you this. The Sensex is down about four percent over a year while growth reads 7.8 percent. That is not an earnings problem. That is the cost of money. We made this argument in BSL-026. This print does not change it.

8 WHAT WE WOULD DO

We talk about groups of companies. We do not name single shares.

One. Do not buy the eight-percent India story off this print. The number carries a wide band and the income figure is half its size. Wait for two more quarters before treating 7.8 percent as a run rate.

Two. Domestic demand over globally linked. Unchanged from BSL-024. The income squeeze comes from import prices. Businesses that earn at home and buy at home are least exposed to it.

Three. Refining margin over crude price. Unchanged from BSL-022, BSL-023 and BSL-025. Higher crude hurts India’s income. It does not hurt the spread between crude and finished fuel.

Four. Short and medium bonds over long ones. Unchanged. A hot growth print alongside a hawkish central bank is the wrong setting for long bonds.

Five. Bullion stays as insurance. Unchanged. Sized as protection, not as a bet.

Six. Trim, do not exit, expensive long-duration equity. Unchanged from BSL-026.

Seven. Cut what you expect them to earn on anything priced off headline GDP. Infrastructure and cyclical stories built on an eight-percent economy should be re-run on the income number instead.

This view runs three months.