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 Viscose staple fibre [1310080003] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1310080006] x 0.9778 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026112.20 +0.8 +13.68 % 172.1 linked (2022-23 × 0.9778)
Aug 2026111.40 +1.0 +13.56 % 169.5 linked (2022-23 × 0.9778)
Jul 2026110.40 +1.3 +12.20 % 168.3 linked (2022-23 × 0.9778)
Jun 2026109.10 +0.9 +10.20 % 168.8 linked (2022-23 × 0.9778)
May 2026108.20 +4.0 +11.09 % 168.5 linked (2022-23 × 0.9778)
Apr 2026104.20 +3.2 +6.65 % 167.6 OEA
Mar 2026101.00 +0.4 +3.38 % 161.2 OEA
Feb 2026100.60 +0.9 +3.71 % 158.4 OEA
Jan 202699.70 +0.4 +3.42 % 157.6 OEA
Dec 202599.30 -0.6 +2.48 % 157.2 OEA
Nov 202599.90 +0.6 +4.28 % 156.2 OEA
Oct 202599.30 +0.6 +3.44 % 155.1 OEA
Sep 202598.70 +0.6 +2.92 % 155.0 OEA
Aug 202598.10 -0.3 +2.51 % 155.2 OEA
Jul 202598.40 -0.6 +3.36 % 154.4 OEA
Jun 202599.00 +1.6 +9.15 % 153.7 OEA
May 202597.40 -0.3 +3.62 % 153.7 OEA
Apr 202597.70 0.0 +5.74 % 154.2 OEA
Mar 202597.70 +0.7 +5.62 % 154.8 OEA
Feb 202597.00 +0.6 +4.64 % 154.9 OEA
Jan 202596.40 -0.5 +4.44 % 155.0 OEA
Dec 202496.90 +1.1 - 155.7 OEA
Nov 202495.80 -0.2 - 156.4 OEA
Oct 202496.00 +0.1 - 156.7 OEA
Sep 202495.90 +0.2 - 154.7 OEA
Aug 202495.70 +0.5 - 154.4 OEA
Jul 202495.20 +4.5 - 155.3 OEA
Jun 202490.70 -3.3 - 154.0 OEA
May 202494.00 +1.6 - 153.5 OEA
Apr 202492.40 -0.1 - 152.9 OEA
Mar 202492.50 -0.2 - 151.4 OEA
Feb 202492.70 +0.4 - 151.2 OEA
Jan 202492.30 - - 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.