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: Labour Bureau, Govt. of India - CPI-IW centre index (base 2016=100) - labourbureau.gov.in/centre-index. Each month's CPI-IW is released on the last working day of the following month. Values entered by hand are highlighted and kept when you update.

CPI-IW Doom-Dooma Tinsukia (Assam) Assam

MonthIndexChange on previous month Change over 12 monthsAll IndiaSource
Aug 2026159.40 +0.9 +1.72 % 154.4 Labour Bureau
Jul 2026158.50 +1.0 +1.86 % 153.2 Labour Bureau
Jun 2026157.50 +1.9 +1.81 % 151.9 Labour Bureau
May 2026155.60 -0.2 +1.77 % 150.8 Labour Bureau
Apr 2026155.80 +0.4 +3.38 % 149.9 Labour Bureau
Mar 2026155.40 +0.4 +2.85 % 149.1 Labour Bureau
Feb 2026155.00 -0.4 +1.97 % 148.5 Labour Bureau
Jan 2026155.40 -0.5 +1.77 % 148.6 Labour Bureau
Dec 2025155.90 -1.0 0.00 % 148.2 Labour Bureau
Nov 2025156.90 -0.8 -2.18 % 148.2 Labour Bureau
Oct 2025157.70 +1.0 -1.38 % 147.7 Labour Bureau
Sep 2025156.70 0.0 +0.32 % 147.3 Labour Bureau
Aug 2025156.70 +1.1 -0.70 % 147.1 Labour Bureau
Jul 2025155.60 +0.9 -0.51 % 146.5 Labour Bureau
Jun 2025154.70 +1.8 +0.19 % 145.0 Labour Bureau
May 2025152.90 +2.2 +0.13 % 144.0 Labour Bureau
Apr 2025150.70 -0.4 -0.53 % 143.5 Labour Bureau
Mar 2025151.10 -0.9 -0.33 % 143.0 Labour Bureau
Feb 2025152.00 -0.7 -0.13 % 142.8 Labour Bureau
Jan 2025152.70 -3.2 +0.07 % 143.2 Labour Bureau
Dec 2024155.90 -4.5 - 143.7 Labour Bureau
Nov 2024160.40 +0.5 - 144.5 Labour Bureau
Oct 2024159.90 +3.7 - 144.5 Labour Bureau
Sep 2024156.20 -1.6 - 143.3 Labour Bureau
Aug 2024157.80 +1.4 - 142.6 Labour Bureau
Jul 2024156.40 +2.0 - 142.7 Labour Bureau
Jun 2024154.40 +1.7 - 141.4 Labour Bureau
May 2024152.70 +1.2 - 139.9 Labour Bureau
Apr 2024151.50 -0.1 - 139.4 Labour Bureau
Mar 2024151.60 -0.6 - 138.9 Labour Bureau
Feb 2024152.20 -0.4 - 139.2 Labour Bureau
Jan 2024152.60 - - 138.9 Labour Bureau

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.