Escalation Bill Price variation for RA and final bills · index-based formula

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 Tamarind [1101050010] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1101050011] x 1.2247 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026158.80 -0.3 -5.19 % 172.1 linked (2022-23 × 1.2247)
Aug 2026159.10 -0.6 -7.61 % 169.5 linked (2022-23 × 1.2247)
Jul 2026159.70 +10.4 -7.79 % 168.3 linked (2022-23 × 1.2247)
Jun 2026149.30 -7.8 -4.29 % 168.8 linked (2022-23 × 1.2247)
May 2026157.10 -0.9 +0.64 % 168.5 linked (2022-23 × 1.2247)
Apr 2026158.00 -2.0 -0.94 % 167.6 OEA
Mar 2026160.00 -10.7 +1.78 % 161.2 OEA
Feb 2026170.70 -0.3 +16.44 % 158.4 OEA
Jan 2026171.00 +1.1 +22.14 % 157.6 OEA
Dec 2025169.90 +2.2 +33.57 % 157.2 OEA
Nov 2025167.70 -0.9 +36.45 % 156.2 OEA
Oct 2025168.60 +1.1 +39.57 % 155.1 OEA
Sep 2025167.50 -4.7 +37.75 % 155.0 OEA
Aug 2025172.20 -1.0 +39.89 % 155.2 OEA
Jul 2025173.20 +17.2 +37.46 % 154.4 OEA
Jun 2025156.00 -0.1 +20.84 % 153.7 OEA
May 2025156.10 -3.4 +18.62 % 153.7 OEA
Apr 2025159.50 +2.3 +10.30 % 154.2 OEA
Mar 2025157.20 +10.6 +11.17 % 154.8 OEA
Feb 2025146.60 +6.6 -1.94 % 154.9 OEA
Jan 2025140.00 +12.8 -3.05 % 155.0 OEA
Dec 2024127.20 +4.3 - 155.7 OEA
Nov 2024122.90 +2.1 - 156.4 OEA
Oct 2024120.80 -0.8 - 156.7 OEA
Sep 2024121.60 -1.5 - 154.7 OEA
Aug 2024123.10 -2.9 - 154.4 OEA
Jul 2024126.00 -3.1 - 155.3 OEA
Jun 2024129.10 -2.5 - 154.0 OEA
May 2024131.60 -13.0 - 153.5 OEA
Apr 2024144.60 +3.2 - 152.9 OEA
Mar 2024141.40 -8.1 - 151.4 OEA
Feb 2024149.50 +5.1 - 151.2 OEA
Jan 2024144.40 - - 151.2 OEA

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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.