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 Sulphuric Acid [1310010019] Manufactured products
Linked values: from May 2026 = WPI 2022-23 [1310010011] x 1.5272 (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 | 545.70 | +21.4 | +164.13 % | 172.1 | linked (2022-23 × 1.5272) |
| Aug 2026 | 524.30 | +10.1 | +159.81 % | 169.5 | linked (2022-23 × 1.5272) |
| Jul 2026 | 514.20 | +28.7 | +156.71 % | 168.3 | linked (2022-23 × 1.5272) |
| Jun 2026 | 485.50 | +49.6 | +140.47 % | 168.8 | linked (2022-23 × 1.5272) |
| May 2026 | 435.90 | +57.6 | +116.11 % | 168.5 | linked (2022-23 × 1.5272) |
| Apr 2026 | 378.30 | +65.5 | +91.35 % | 167.6 | OEA |
| Mar 2026 | 312.80 | +25.4 | +84.43 % | 161.2 | OEA |
| Feb 2026 | 287.40 | +12.2 | +80.53 % | 158.4 | OEA |
| Jan 2026 | 275.20 | +21.3 | +82.61 % | 157.6 | OEA |
| Dec 2025 | 253.90 | +25.0 | +86.42 % | 157.2 | OEA |
| Nov 2025 | 228.90 | +12.5 | +74.87 % | 156.2 | OEA |
| Oct 2025 | 216.40 | +9.8 | +69.59 % | 155.1 | OEA |
| Sep 2025 | 206.60 | +4.8 | +79.18 % | 155.0 | OEA |
| Aug 2025 | 201.80 | +1.5 | +102.61 % | 155.2 | OEA |
| Jul 2025 | 200.30 | -1.6 | +118.91 % | 154.4 | OEA |
| Jun 2025 | 201.90 | +0.2 | +121.38 % | 153.7 | OEA |
| May 2025 | 201.70 | +4.0 | +124.86 % | 153.7 | OEA |
| Apr 2025 | 197.70 | +28.1 | +123.64 % | 154.2 | OEA |
| Mar 2025 | 169.60 | +10.4 | +94.05 % | 154.8 | OEA |
| Feb 2025 | 159.20 | +8.5 | +78.28 % | 154.9 | OEA |
| Jan 2025 | 150.70 | +14.5 | +53.93 % | 155.0 | OEA |
| Dec 2024 | 136.20 | +5.3 | - | 155.7 | OEA |
| Nov 2024 | 130.90 | +3.3 | - | 156.4 | OEA |
| Oct 2024 | 127.60 | +12.3 | - | 156.7 | OEA |
| Sep 2024 | 115.30 | +15.7 | - | 154.7 | OEA |
| Aug 2024 | 99.60 | +8.1 | - | 154.4 | OEA |
| Jul 2024 | 91.50 | +0.3 | - | 155.3 | OEA |
| Jun 2024 | 91.20 | +1.5 | - | 154.0 | OEA |
| May 2024 | 89.70 | +1.3 | - | 153.5 | OEA |
| Apr 2024 | 88.40 | +1.0 | - | 152.9 | OEA |
| Mar 2024 | 87.40 | -1.9 | - | 151.4 | OEA |
| Feb 2024 | 89.30 | -8.6 | - | 151.2 | OEA |
| Jan 2024 | 97.90 | - | - | 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.