The Office of the Economic Adviser's own figures

Fertiliser output

11.7 per centthe fall in fertiliser output in September 2026 from a year earlier, provisional

Fertiliser output fell in each month from March 2026 to September 2026, when each is set against the same month a year earlier. The falls were 24.6, 8.5, 1.0, 3.3, 8.0, 12.4 and 11.7 per cent, in that order.

No run this long appears on either of the Office's two series since April 2012. The older 2011-12 series, which gives growth rates from April 2012 to May 2026, never ran longer than five months, from January to May 2024, and the 2022-23 series, which gives them from April 2024, never ran longer than three months before this run. The fertiliser index for September 2026 was 96.7, the lowest of the four Septembers on the 2022-23 series, which begins in April 2023.

Source: OEA release for September 2026, 21 October 2026 ; OEA workbook, 2022-23 series, 21 October 2026 ; OEA workbook, 2011-12 series, 20 July 2026 .

Start here

The essentials

What the figures show

Fertiliser output has been below its level of a year earlier for seven months in a row, a run that lasts from March 2026 to September 2026. In September 2026 it was 11.7 per cent below September 2025, and that figure is provisional. The Office of the Economic Adviser (OEA) publishes the Index of Core Industries, and both figures come from it. No run this long appears on either of the Office's two series since April 2012. The older 2011-12 series, which gives growth rates from April 2012 to May 2026, never ran longer than five months, from January to May 2024, and the 2022-23 series, which gives them from April 2024, never ran longer than three months before this run. The fertiliser index for September 2026 was 96.7, the lowest of the four Septembers on the 2022-23 series, which begins in April 2023.

Source: OEA release for September 2026, 21 October 2026 ; OEA workbook, 2022-23 series, 21 October 2026 ; OEA workbook, 2011-12 series, 20 July 2026 .

Fertilisers, September 2026

Fertiliser output has been below its level of a year earlier for seven months in a row, a run that lasts from March 2026 to September 2026. In September 2026 it was 11.7 per cent below September 2025, and that figure is provisional. The Office of the Economic Adviser (OEA) publishes the Index of Core Industries, and both figures come from it. No run this long appears on either of the Office's two series since April 2012.

Source: OEA release for September 2026, 21 October 2026 ; OEA workbook, 2022-23 series, 21 October 2026 ; OEA workbook, 2011-12 series, 20 July 2026 .

The lowest September

The fertiliser index stood at 96.7 in September 2026. It was 109.5 in September 2025, 107.7 in September 2024 and 105.7 in September 2023.

Source: OEA release for September 2026, 21 October 2026 ; OEA workbook, 2022-23 series, 21 October 2026 .

April to September 2026

When the Office compares April to September 2026 with the same months a year earlier, four of the nine core industries produced less. They were coal, natural gas, crude oil and fertilisers.

Source: OEA release for September 2026, 21 October 2026 ; OEA workbook, 2022-23 series, 21 October 2026 .

Natural gas and crude oil

Natural gas output has been below the same month of the year before in every month from July 2024 to September 2026, which makes 27 months in a row. Crude oil output has been below it in every month from January 2025 to September 2026, which makes 21 months in a row.

Source: OEA release for September 2026, 21 October 2026 ; OEA workbook, 2022-23 series, 21 October 2026 .

The monsoon

The Reserve Bank's Monetary Policy Committee wrote on 7 October 2026: "Deficient south-west monsoon and strong El Niño conditions pose risks to agriculture sector's outlook and rural demand ..."

Source: RBI MPC resolution, 7 October 2026 .

01 / The evidence

Fertiliser output, month by month

Fertiliser output fell in each month from March 2026 to September 2026, when each is set against the same month a year earlier. The falls were 24.6, 8.5, 1.0, 3.3, 8.0, 12.4 and 11.7 per cent, in that order.

Fertiliser output, growth over the same month a year earlier, April 2024 to September 2026Fertiliser output, month by monthPer cent, year on year-25-20-15-10-5051015Apr 24: -0.7-0.7Apr 24May 24: -1.7-1.7Jun 24: 2.52.5Jun 24Jul 24: 5.45.4Aug 24: 3.23.2Aug 24Sep 24: 1.91.9Oct 24: 0.40.4Oct 24Nov 24: 2.12.1Dec 24: 1.61.6Dec 24Jan 25: 2.92.9Feb 25: 10.310.3Feb 25Mar 25: 8.98.9Apr 25: -4.2-4.2Apr 25May 25: -5.9-5.9Jun 25: -1.2-1.2Jun 25Jul 25: 1.91.9Aug 25: 4.54.5Aug 25Sep 25: 1.71.7Oct 25: 7.47.4Oct 25Nov 25: 5.55.5Dec 25: 4.14.1Dec 25Jan 26: 3.73.7Feb 26: 3.53.5Feb 26Mar 26: -24.6-24.6Apr 26: -8.5-8.5Apr 26May 26: -1.0-1.0Jun 26: -3.3-3.3Jun 26Jul 26: -8.0-8.0Aug 26: -12.4-12.4Sep 26: -11.7-11.7Sep 26
Fertiliser output, month by month
Per cent, year on year
Fertiliser output, growth over the same month a year earlier, April 2024 to September 2026-25-20-15-10-5051015Apr 24-1.75.4Oct 242.110.3Apr 25-5.94.57.4Oct 253.5-24.6-12.4Sep 26
Each bar is the rate at which fertiliser output grew or fell, which the Office measures against the same month a year earlier. A red bar is a fall. The last 7 bars are falls in a row.
Sep 26: -11.7

Source: OEA release for September 2026, 21 October 2026 ; OEA workbook, 2022-23 series, 21 October 2026 . Each observation's dated source is linked in its CSV row.

View the figures in a table
Fertiliser output, month by month
ObservationValueOfficial source
Apr 24-0.7OEA release for September 2026, 21 October 2026
May 24-1.7OEA release for September 2026, 21 October 2026
Jun 242.5OEA release for September 2026, 21 October 2026
Jul 245.4OEA release for September 2026, 21 October 2026
Aug 243.2OEA release for September 2026, 21 October 2026
Sep 241.9OEA release for September 2026, 21 October 2026
Oct 240.4OEA release for September 2026, 21 October 2026
Nov 242.1OEA release for September 2026, 21 October 2026
Dec 241.6OEA release for September 2026, 21 October 2026
Jan 252.9OEA release for September 2026, 21 October 2026
Feb 2510.3OEA release for September 2026, 21 October 2026
Mar 258.9OEA release for September 2026, 21 October 2026
Apr 25-4.2OEA release for September 2026, 21 October 2026
May 25-5.9OEA release for September 2026, 21 October 2026
Jun 25-1.2OEA release for September 2026, 21 October 2026
Jul 251.9OEA release for September 2026, 21 October 2026
Aug 254.5OEA release for September 2026, 21 October 2026
Sep 251.7OEA release for September 2026, 21 October 2026
Oct 257.4OEA release for September 2026, 21 October 2026
Nov 255.5OEA release for September 2026, 21 October 2026
Dec 254.1OEA release for September 2026, 21 October 2026
Jan 263.7OEA release for September 2026, 21 October 2026
Feb 263.5OEA release for September 2026, 21 October 2026
Mar 26-24.6OEA release for September 2026, 21 October 2026
Apr 26-8.5OEA release for September 2026, 21 October 2026
May 26-1.0OEA release for September 2026, 21 October 2026
Jun 26-3.3OEA release for September 2026, 21 October 2026
Jul 26-8.0OEA release for September 2026, 21 October 2026
Aug 26-12.4OEA release for September 2026, 21 October 2026
Sep 26-11.7OEA release for September 2026, 21 October 2026
02 / The evidence

The fertiliser index in September of each year

The fertiliser index stood at 96.7 in September 2026. It was 109.5 in September 2025, 107.7 in September 2024 and 105.7 in September 2023.

The fertiliser index in September of each yearIndex, 2022-23 = 100 (the axis starts at 80)80859095100105110September 2023: 105.7September 2023105.7September 2024: 107.7September 2024107.7September 2025: 109.5September 2025109.5September 2026: 96.7September 202696.7
Index, 2022-23 = 100 (the axis starts at 80)
The fertiliser index in September of each year80859095100105110September2023105.7September2024107.7September2025109.5September202696.7
Each bar is the fertiliser index in September of one year, on the 2022-23 series, where the year 2022-23 averages 100. The red bar is September 2026. The axis starts at 80.
September 2026: 96.7

Source: OEA workbook, 2022-23 series, 21 October 2026 . Each observation's dated source is linked in its CSV row.

View the figures in a table
The fertiliser index in September of each year
ObservationValueOfficial source
September 2023105.7OEA release for September 2026, 21 October 2026
September 2024107.7OEA release for September 2026, 21 October 2026
September 2025109.5OEA release for September 2026, 21 October 2026
September 202696.7OEA release for September 2026, 21 October 2026

The average fertiliser index for April to September was 97.9 in 2026, against 106.0 in 2025, 106.4 in 2024 and 104.6 in 2023. This year's figure is the lowest of the four years that the series covers.

03 / The evidence

Industries that produced less than a year earlier

When the Office compares April to September 2026 with the same months a year earlier, four of the nine core industries produced less. They were coal, natural gas, crude oil and fertilisers.

Industries whose output in April to September 2026 was below a year earlierPer cent, April to September 2026 against April to September 2025-8-6-4-20CoalCoal: -1.0-1.0Natural gasNatural gas: -4.4-4.4Crude oilCrude oil: -3.7-3.7FertilisersFertilisers: -7.6-7.6
Per cent, April to September 2026 against April to September 2025
Industries whose output in April to September 2026 was below a year earlier-8-6-4-20Coal-1.0Natural gas-4.4Crude oil-3.7Fertilisers-7.6
Each bar shows how far an industry's output in April to September 2026 fell below the level that it reached in the same months a year earlier. Only the industries whose output fell are shown.
Fertilisers: -7.6

Source: OEA release for September 2026, 21 October 2026 . Each observation's dated source is linked in its CSV row.

View the figures in a table
Industries that produced less than a year earlier
ObservationValueOfficial source
Coal-1.0OEA release for September 2026, 21 October 2026
Natural gas-4.4OEA release for September 2026, 21 October 2026
Crude oil-3.7OEA release for September 2026, 21 October 2026
Fertilisers-7.6OEA release for September 2026, 21 October 2026
04 / The evidence

Natural gas and crude oil

Natural gas output has been below the same month of the year before in every month from July 2024 to September 2026, which makes 27 months in a row. Crude oil output has been below it in every month from January 2025 to September 2026, which makes 21 months in a row.

Natural gas and crude oil output, growth over a year earlier, April 2024 to September 2026Per cent, year on yearNatural gasCrude oil-10-50510Apr 24, Natural gas: 8.8Apr 24, Crude oil: 1.6Apr 24May 24, Natural gas: 7.7May 24, Crude oil: -1.1Jun 24, Natural gas: 3.6Jun 24, Crude oil: -2.7Jun 24Jul 24, Natural gas: -1.1Jul 24, Crude oil: -2.8Aug 24, Natural gas: -3.6Aug 24, Crude oil: -3.3Aug 24Sep 24, Natural gas: -1.4Sep 24, Crude oil: -3.9Oct 24, Natural gas: -1.2Oct 24, Crude oil: -4.9Oct 24Nov 24, Natural gas: -1.8Nov 24, Crude oil: -2.1Dec 24, Natural gas: -1.6Dec 24, Crude oil: 0.7Dec 24Jan 25, Natural gas: -1.6Jan 25, Crude oil: -1.2Feb 25, Natural gas: -6.0Feb 25, Crude oil: -5.0Feb 25Mar 25, Natural gas: -4.0Mar 25, Crude oil: -1.8Apr 25, Natural gas: -1.3Apr 25, Crude oil: -3.1Apr 25May 25, Natural gas: -3.9May 25, Crude oil: -1.7Jun 25, Natural gas: -3.0Jun 25, Crude oil: -0.5Jun 25Jul 25, Natural gas: -3.3Jul 25, Crude oil: -0.8Aug 25, Natural gas: -2.2Aug 25, Crude oil: -0.7Aug 25Sep 25, Natural gas: -3.7Sep 25, Crude oil: -0.7Oct 25, Natural gas: -5.2Oct 25, Crude oil: -0.8Oct 25Nov 25, Natural gas: -2.5Nov 25, Crude oil: -2.6Dec 25, Natural gas: -4.4Dec 25, Crude oil: -5.1Dec 25Jan 26, Natural gas: -4.9Jan 26, Crude oil: -5.4Feb 26, Natural gas: -5.0Feb 26, Crude oil: -4.8Feb 26Mar 26, Natural gas: -3.7Mar 26, Crude oil: -5.3Apr 26, Natural gas: -4.2Apr 26, Crude oil: -3.2Apr 26May 26, Natural gas: -5.0May 26, Crude oil: -4.2Jun 26, Natural gas: -4.8Jun 26, Crude oil: -4.2Jun 26Jul 26, Natural gas: -3.0Jul 26, Crude oil: -5.3Aug 26, Natural gas: -4.9Aug 26, Crude oil: -3.6Sep 26, Natural gas: -4.6Sep 26, Crude oil: -1.4Sep 26
Per cent, year on year
Natural gasCrude oil
Natural gas and crude oil output, growth over a year earlier, April 2024 to September 2026-10-50510Apr 24Oct 24Apr 25Oct 25Sep 26
Each pair of bars is one month, with natural gas in red and crude oil in gold. A bar that sits below the line is a fall from the same month a year earlier.
Sep 26: -4.6

Source: OEA workbook, 2022-23 series, 21 October 2026 . Each observation's dated source is linked in its CSV row.

View the figures in a table
Natural gas and crude oil
ObservationValueOfficial source
Apr 248.8OEA release for September 2026, 21 October 2026
May 247.7OEA release for September 2026, 21 October 2026
Jun 243.6OEA release for September 2026, 21 October 2026
Jul 24-1.1OEA release for September 2026, 21 October 2026
Aug 24-3.6OEA release for September 2026, 21 October 2026
Sep 24-1.4OEA release for September 2026, 21 October 2026
Oct 24-1.2OEA release for September 2026, 21 October 2026
Nov 24-1.8OEA release for September 2026, 21 October 2026
Dec 24-1.6OEA release for September 2026, 21 October 2026
Jan 25-1.6OEA release for September 2026, 21 October 2026
Feb 25-6.0OEA release for September 2026, 21 October 2026
Mar 25-4.0OEA release for September 2026, 21 October 2026
Apr 25-1.3OEA release for September 2026, 21 October 2026
May 25-3.9OEA release for September 2026, 21 October 2026
Jun 25-3.0OEA release for September 2026, 21 October 2026
Jul 25-3.3OEA release for September 2026, 21 October 2026
Aug 25-2.2OEA release for September 2026, 21 October 2026
Sep 25-3.7OEA release for September 2026, 21 October 2026
Oct 25-5.2OEA release for September 2026, 21 October 2026
Nov 25-2.5OEA release for September 2026, 21 October 2026
Dec 25-4.4OEA release for September 2026, 21 October 2026
Jan 26-4.9OEA release for September 2026, 21 October 2026
Feb 26-5.0OEA release for September 2026, 21 October 2026
Mar 26-3.7OEA release for September 2026, 21 October 2026
Apr 26-4.2OEA release for September 2026, 21 October 2026
May 26-5.0OEA release for September 2026, 21 October 2026
Jun 26-4.8OEA release for September 2026, 21 October 2026
Jul 26-3.0OEA release for September 2026, 21 October 2026
Aug 26-4.9OEA release for September 2026, 21 October 2026
Sep 26-4.6OEA release for September 2026, 21 October 2026

The natural gas and crude oil indices for September 2026 were the lowest for any September since the series began in April 2023.

And you

The monsoon, in the Government's own words

The Reserve Bank's Monetary Policy Committee wrote on 7 October 2026: "Deficient south-west monsoon and strong El Niño conditions pose risks to agriculture sector's outlook and rural demand ..." The Agriculture Ministry reported on 21 July 2026: "During the period from June 1 to July 15, 2026, the average rainfall in the country was recorded at 23 per cent below normal."

Fertiliser output, month by month

Each figure shows how far fertiliser output fell below the level that it reached in the same month a year earlier.

March 202624.6per cent below a year earlier
April 20268.5per cent below a year earlier
May 20261.0per cent below a year earlier
June 20263.3per cent below a year earlier
July 20268.0per cent below a year earlier
August 202612.4per cent below a year earlier
September 202611.7per cent below a year earlier

The Office's own figures show that domestic fertiliser output was below its level of a year earlier in each month from March 2026 to September 2026, and in June, July, August and September 2026 it was 3.3, 8.0, 12.4 and 11.7 per cent below.

The Office's own figures show that fertiliser output was below its level of a year earlier in every month from March 2026 to September 2026, and in September 2026 it was 11.7 per cent below, on the provisional figure.

Terms, explained

Index of Core Industries
The Office of the Economic Adviser in the Department for Promotion of Industry and Internal Trade measures the output of nine core industries each month and publishes an index for each. The year 2022-23 is set to 100.
Growth rate
The Office compares a month's index with the same month a year earlier, and a negative rate means that output fell.
April to a month
The Office averages the months from April, which starts the financial year, and compares that average with the same months a year earlier.
Provisional
The latest month is provisional, and the Office prints its final figure a month later.
Weight
Each industry's share of the whole index, which the Office takes from the index of industrial production, and the nine weights add up to 100.
Keep the evidence

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Sources & method

Every figure on output in this brief comes from the Index of Core Industries, which the Office of the Economic Adviser (OEA) publishes. The Office measures the output of nine core industries each month, and it publishes an index for each, where the year 2022-23 is set to 100.

A growth rate here is the Office's own, which compares a month's index with the same month a year earlier. Where a figure covers April to a month, it compares the average of those months with the same months a year earlier.

The Office moved the index to the base year 2022-23 on 20 July 2026, and its growth rates begin in April 2024. Its older series, on the base 2011-12, ran to May 2026, and this brief reads it on its own and never joins the two.

This brief works out three kinds of figure from the Office's own: the April to September averages of 2023 and 2024, the runs of months in which output was below its level of a year earlier, and the ranking of a month against the other months of its series. It prints every other figure as the Office prints it, to one decimal. The latest month is provisional, and the Office prints its final figure a month later.

  1. OEA release for September 2026, 21 October 2026 .
  2. OEA workbook, 2022-23 series, 21 October 2026 .
  3. OEA workbook, 2011-12 series, 20 July 2026 .
  4. RBI MPC resolution, 7 October 2026 .
  5. Agriculture Ministry release, 21 July 2026 .
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