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 Kollam (Kerala) Kerala

MonthIndexChange on previous month Change over 12 monthsAll IndiaSource
Aug 2026164.00 +0.1 +5.67 % 154.4 Labour Bureau
Jul 2026163.90 +1.9 +6.50 % 153.2 Labour Bureau
Jun 2026162.00 +4.7 +7.07 % 151.9 Labour Bureau
May 2026157.30 +2.9 +5.93 % 150.8 Labour Bureau
Apr 2026154.40 +0.4 +5.25 % 149.9 Labour Bureau
Mar 2026154.00 +0.1 +5.77 % 149.1 Labour Bureau
Feb 2026153.90 -1.4 +6.14 % 148.5 Labour Bureau
Jan 2026155.30 +2.4 +6.37 % 148.6 Labour Bureau
Dec 2025152.90 +0.4 +5.67 % 148.2 Labour Bureau
Nov 2025152.50 -0.7 +6.05 % 148.2 Labour Bureau
Oct 2025153.20 -0.6 +6.32 % 147.7 Labour Bureau
Sep 2025153.80 -1.4 +6.88 % 147.3 Labour Bureau
Aug 2025155.20 +1.3 +7.48 % 147.1 Labour Bureau
Jul 2025153.90 +2.6 +6.28 % 146.5 Labour Bureau
Jun 2025151.30 +2.8 +3.49 % 145.0 Labour Bureau
May 2025148.50 +1.8 +5.77 % 144.0 Labour Bureau
Apr 2025146.70 +1.1 +6.23 % 143.5 Labour Bureau
Mar 2025145.60 +0.6 +5.58 % 143.0 Labour Bureau
Feb 2025145.00 -1.0 +5.38 % 142.8 Labour Bureau
Jan 2025146.00 +1.3 +6.65 % 143.2 Labour Bureau
Dec 2024144.70 +0.9 - 143.7 Labour Bureau
Nov 2024143.80 -0.3 - 144.5 Labour Bureau
Oct 2024144.10 +0.2 - 144.5 Labour Bureau
Sep 2024143.90 -0.5 - 143.3 Labour Bureau
Aug 2024144.40 -0.4 - 142.6 Labour Bureau
Jul 2024144.80 -1.4 - 142.7 Labour Bureau
Jun 2024146.20 +5.8 - 141.4 Labour Bureau
May 2024140.40 +2.3 - 139.9 Labour Bureau
Apr 2024138.10 +0.2 - 139.4 Labour Bureau
Mar 2024137.90 +0.3 - 138.9 Labour Bureau
Feb 2024137.60 +0.7 - 139.2 Labour Bureau
Jan 2024136.90 - - 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.