Price index database
Official indices: CPI-IW for the Labour Bureau's centres (base 2016 = 100, from January 2024) and the Wholesale Price Index for every item - the current series (base 2022-23 = 100, from April 2023) and the former series (base 2011-12 = 100, from January 2024 to April 2026, continued by linking). Escalation bills take their base and current indices from here.
Latest official month in the database: CPI-IW 2026-08, WPI 2022-23 2026-09, WPI 2011-12 2026-04 (linked to 2026-09). Source: Office of the Economic Adviser, DPIIT - Wholesale Price Index (base 2011-12=100) - eaindustry.nic.in. The OEA stopped this series after April 2026. Later months are linked: the 2022-23 index of the same item multiplied by a linking factor - the OEA's own factors for All commodities (1.53), Primary articles (1.71), Fuel & power (1.65) and Manufactured products (1.44), and for other items the ratio of the geometric means of their FY 2024-25 indices in the two series, the method the OEA used. Items with no clear successor in the new series are not linked; use the 2022-23 series for them. Values entered by hand are highlighted and kept when you update.
WPI Ammonium nitrate [1310010025] Manufactured products
Linked values: from May 2026 = WPI 2022-23 [1310020003] x 2.4757 (item linking factor, ratio of FY 2024-25 geometric means).
| Month | Index | Change on previous month | Change over 12 months | WPI all commodities | Source |
|---|---|---|---|---|---|
| Sep 2026 | 163.60 | -16.4 | +8.56 % | 172.1 | linked (2022-23 × 2.4757) |
| Aug 2026 | 180.00 | -22.3 | +19.84 % | 169.5 | linked (2022-23 × 2.4757) |
| Jul 2026 | 202.30 | -11.1 | +33.44 % | 168.3 | linked (2022-23 × 2.4757) |
| Jun 2026 | 213.40 | -2.0 | +35.66 % | 168.8 | linked (2022-23 × 2.4757) |
| May 2026 | 215.40 | +15.8 | +33.62 % | 168.5 | linked (2022-23 × 2.4757) |
| Apr 2026 | 199.60 | +26.6 | +23.90 % | 167.6 | OEA |
| Mar 2026 | 173.00 | +21.3 | +9.49 % | 161.2 | OEA |
| Feb 2026 | 151.70 | +2.0 | -1.17 % | 158.4 | OEA |
| Jan 2026 | 149.70 | 0.0 | -1.38 % | 157.6 | OEA |
| Dec 2025 | 149.70 | -0.6 | -1.32 % | 157.2 | OEA |
| Nov 2025 | 150.30 | +0.4 | -1.12 % | 156.2 | OEA |
| Oct 2025 | 149.90 | -0.8 | -2.41 % | 155.1 | OEA |
| Sep 2025 | 150.70 | +0.5 | -1.31 % | 155.0 | OEA |
| Aug 2025 | 150.20 | -1.4 | -5.30 % | 155.2 | OEA |
| Jul 2025 | 151.60 | -5.7 | -5.55 % | 154.4 | OEA |
| Jun 2025 | 157.30 | -3.9 | -2.05 % | 153.7 | OEA |
| May 2025 | 161.20 | +0.1 | 0.00 % | 153.7 | OEA |
| Apr 2025 | 161.10 | +3.1 | +1.96 % | 154.2 | OEA |
| Mar 2025 | 158.00 | +4.5 | +2.93 % | 154.8 | OEA |
| Feb 2025 | 153.50 | +1.7 | +10.59 % | 154.9 | OEA |
| Jan 2025 | 151.80 | +0.1 | +12.03 % | 155.0 | OEA |
| Dec 2024 | 151.70 | -0.3 | - | 155.7 | OEA |
| Nov 2024 | 152.00 | -1.6 | - | 156.4 | OEA |
| Oct 2024 | 153.60 | +0.9 | - | 156.7 | OEA |
| Sep 2024 | 152.70 | -5.9 | - | 154.7 | OEA |
| Aug 2024 | 158.60 | -1.9 | - | 154.4 | OEA |
| Jul 2024 | 160.50 | -0.1 | - | 155.3 | OEA |
| Jun 2024 | 160.60 | -0.6 | - | 154.0 | OEA |
| May 2024 | 161.20 | +3.2 | - | 153.5 | OEA |
| Apr 2024 | 158.00 | +4.5 | - | 152.9 | OEA |
| Mar 2024 | 153.50 | +14.7 | - | 151.4 | OEA |
| Feb 2024 | 138.80 | +3.3 | - | 151.2 | OEA |
| Jan 2024 | 135.50 | - | - | 151.2 | OEA |
Enter a month by hand
For a month not yet in the database (e.g. from the latest press release). Updates from the website do not replace hand-entered values; enter the official figure here to correct one.