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 Haldia (West Bengal) West Bengal

MonthIndexChange on previous month Change over 12 monthsAll IndiaSource
Aug 2026139.00 +3.1 +8.26 % 154.4 Labour Bureau
Jul 2026135.90 +0.8 +6.34 % 153.2 Labour Bureau
Jun 2026135.10 +3.9 +6.29 % 151.9 Labour Bureau
May 2026131.20 -0.1 +4.71 % 150.8 Labour Bureau
Apr 2026131.30 -1.6 +4.54 % 149.9 Labour Bureau
Mar 2026132.90 +0.4 +5.06 % 149.1 Labour Bureau
Feb 2026132.50 +0.3 +4.99 % 148.5 Labour Bureau
Jan 2026132.20 +0.6 +5.51 % 148.6 Labour Bureau
Dec 2025131.60 -0.5 +2.89 % 148.2 Labour Bureau
Nov 2025132.10 -0.4 +2.64 % 148.2 Labour Bureau
Oct 2025132.50 +2.1 +2.47 % 147.7 Labour Bureau
Sep 2025130.40 +2.0 +0.77 % 147.3 Labour Bureau
Aug 2025128.40 +0.6 +0.94 % 147.1 Labour Bureau
Jul 2025127.80 +0.7 +0.47 % 146.5 Labour Bureau
Jun 2025127.10 +1.8 +0.39 % 145.0 Labour Bureau
May 2025125.30 -0.3 +0.64 % 144.0 Labour Bureau
Apr 2025125.60 -0.9 +0.64 % 143.5 Labour Bureau
Mar 2025126.50 +0.3 +1.28 % 143.0 Labour Bureau
Feb 2025126.20 +0.9 +0.80 % 142.8 Labour Bureau
Jan 2025125.30 -2.6 -0.08 % 143.2 Labour Bureau
Dec 2024127.90 -0.8 - 143.7 Labour Bureau
Nov 2024128.70 -0.6 - 144.5 Labour Bureau
Oct 2024129.30 -0.1 - 144.5 Labour Bureau
Sep 2024129.40 +2.2 - 143.3 Labour Bureau
Aug 2024127.20 0.0 - 142.6 Labour Bureau
Jul 2024127.20 +0.6 - 142.7 Labour Bureau
Jun 2024126.60 +2.1 - 141.4 Labour Bureau
May 2024124.50 -0.3 - 139.9 Labour Bureau
Apr 2024124.80 -0.1 - 139.4 Labour Bureau
Mar 2024124.90 -0.3 - 138.9 Labour Bureau
Feb 2024125.20 -0.2 - 139.2 Labour Bureau
Jan 2024125.40 - - 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.