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 Durgapur (West Bengal) West Bengal

MonthIndexChange on previous month Change over 12 monthsAll IndiaSource
Aug 2026151.80 +2.7 +2.92 % 154.4 Labour Bureau
Jul 2026149.10 +1.1 +1.50 % 153.2 Labour Bureau
Jun 2026148.00 0.0 +1.09 % 151.9 Labour Bureau
May 2026148.00 +0.8 +2.21 % 150.8 Labour Bureau
Apr 2026147.20 +0.1 +1.45 % 149.9 Labour Bureau
Mar 2026147.10 +1.6 +2.58 % 149.1 Labour Bureau
Feb 2026145.50 -0.5 +1.25 % 148.5 Labour Bureau
Jan 2026146.00 -1.2 +1.11 % 148.6 Labour Bureau
Dec 2025147.20 -0.6 +0.55 % 148.2 Labour Bureau
Nov 2025147.80 -0.7 -0.14 % 148.2 Labour Bureau
Oct 2025148.50 +0.5 +0.47 % 147.7 Labour Bureau
Sep 2025148.00 +0.5 0.00 % 147.3 Labour Bureau
Aug 2025147.50 +0.6 +1.44 % 147.1 Labour Bureau
Jul 2025146.90 +0.5 +0.96 % 146.5 Labour Bureau
Jun 2025146.40 +1.6 +2.74 % 145.0 Labour Bureau
May 2025144.80 -0.3 +1.97 % 144.0 Labour Bureau
Apr 2025145.10 +1.7 +2.98 % 143.5 Labour Bureau
Mar 2025143.40 -0.3 +1.70 % 143.0 Labour Bureau
Feb 2025143.70 -0.7 +1.27 % 142.8 Labour Bureau
Jan 2025144.40 -2.0 +1.91 % 143.2 Labour Bureau
Dec 2024146.40 -1.6 - 143.7 Labour Bureau
Nov 2024148.00 +0.2 - 144.5 Labour Bureau
Oct 2024147.80 -0.2 - 144.5 Labour Bureau
Sep 2024148.00 +2.6 - 143.3 Labour Bureau
Aug 2024145.40 -0.1 - 142.6 Labour Bureau
Jul 2024145.50 +3.0 - 142.7 Labour Bureau
Jun 2024142.50 +0.5 - 141.4 Labour Bureau
May 2024142.00 +1.1 - 139.9 Labour Bureau
Apr 2024140.90 -0.1 - 139.4 Labour Bureau
Mar 2024141.00 -0.9 - 138.9 Labour Bureau
Feb 2024141.90 +0.2 - 139.2 Labour Bureau
Jan 2024141.70 - - 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.