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 Soda ash/washing soda [1310010007] Manufactured products
Linked values: from May 2026 = WPI 2022-23 [1310010016] x 2.0610 (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 | 158.50 | +2.1 | +4.00 % | 172.1 | linked (2022-23 × 2.0610) |
| Aug 2026 | 156.40 | +0.6 | +3.17 % | 169.5 | linked (2022-23 × 2.0610) |
| Jul 2026 | 155.80 | -0.8 | +1.56 % | 168.3 | linked (2022-23 × 2.0610) |
| Jun 2026 | 156.60 | -0.9 | +0.97 % | 168.8 | linked (2022-23 × 2.0610) |
| May 2026 | 157.50 | +2.8 | +0.70 % | 168.5 | linked (2022-23 × 2.0610) |
| Apr 2026 | 154.70 | +4.6 | +0.06 % | 167.6 | OEA |
| Mar 2026 | 150.10 | +0.2 | -2.72 % | 161.2 | OEA |
| Feb 2026 | 149.90 | +0.6 | -4.46 % | 158.4 | OEA |
| Jan 2026 | 149.30 | +0.3 | -4.23 % | 157.6 | OEA |
| Dec 2025 | 149.00 | +1.0 | -4.79 % | 157.2 | OEA |
| Nov 2025 | 148.00 | -3.0 | -5.49 % | 156.2 | OEA |
| Oct 2025 | 151.00 | -1.4 | -3.45 % | 155.1 | OEA |
| Sep 2025 | 152.40 | +0.8 | -1.55 % | 155.0 | OEA |
| Aug 2025 | 151.60 | -1.8 | -2.51 % | 155.2 | OEA |
| Jul 2025 | 153.40 | -1.7 | -0.90 % | 154.4 | OEA |
| Jun 2025 | 155.10 | -1.3 | +0.26 % | 153.7 | OEA |
| May 2025 | 156.40 | +1.8 | +1.30 % | 153.7 | OEA |
| Apr 2025 | 154.60 | +0.3 | +0.26 % | 154.2 | OEA |
| Mar 2025 | 154.30 | -2.6 | -0.71 % | 154.8 | OEA |
| Feb 2025 | 156.90 | +1.0 | +0.38 % | 154.9 | OEA |
| Jan 2025 | 155.90 | -0.6 | -1.08 % | 155.0 | OEA |
| Dec 2024 | 156.50 | -0.1 | - | 155.7 | OEA |
| Nov 2024 | 156.60 | +0.2 | - | 156.4 | OEA |
| Oct 2024 | 156.40 | +1.6 | - | 156.7 | OEA |
| Sep 2024 | 154.80 | -0.7 | - | 154.7 | OEA |
| Aug 2024 | 155.50 | +0.7 | - | 154.4 | OEA |
| Jul 2024 | 154.80 | +0.1 | - | 155.3 | OEA |
| Jun 2024 | 154.70 | +0.3 | - | 154.0 | OEA |
| May 2024 | 154.40 | +0.2 | - | 153.5 | OEA |
| Apr 2024 | 154.20 | -1.2 | - | 152.9 | OEA |
| Mar 2024 | 155.40 | -0.9 | - | 151.4 | OEA |
| Feb 2024 | 156.30 | -1.3 | - | 151.2 | OEA |
| Jan 2024 | 157.60 | - | - | 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.