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 Idukki (Kerala) Kerala

MonthIndexChange on previous month Change over 12 monthsAll IndiaSource
Aug 2026164.60 -0.3 +5.78 % 154.4 Labour Bureau
Jul 2026164.90 +2.5 +5.37 % 153.2 Labour Bureau
Jun 2026162.40 +3.5 +4.37 % 151.9 Labour Bureau
May 2026158.90 +2.2 +4.33 % 150.8 Labour Bureau
Apr 2026156.70 +2.8 +5.17 % 149.9 Labour Bureau
Mar 2026153.90 +0.3 +4.13 % 149.1 Labour Bureau
Feb 2026153.60 -1.6 +3.23 % 148.5 Labour Bureau
Jan 2026155.20 -0.8 +3.60 % 148.6 Labour Bureau
Dec 2025156.00 +0.4 +3.52 % 148.2 Labour Bureau
Nov 2025155.60 0.0 +4.50 % 148.2 Labour Bureau
Oct 2025155.60 +0.7 +4.85 % 147.7 Labour Bureau
Sep 2025154.90 -0.7 +4.73 % 147.3 Labour Bureau
Aug 2025155.60 -0.9 +5.06 % 147.1 Labour Bureau
Jul 2025156.50 +0.9 +4.96 % 146.5 Labour Bureau
Jun 2025155.60 +3.3 +2.91 % 145.0 Labour Bureau
May 2025152.30 +3.3 +4.10 % 144.0 Labour Bureau
Apr 2025149.00 +1.2 +3.62 % 143.5 Labour Bureau
Mar 2025147.80 -1.0 +4.16 % 143.0 Labour Bureau
Feb 2025148.80 -1.0 +5.16 % 142.8 Labour Bureau
Jan 2025149.80 -0.9 +5.94 % 143.2 Labour Bureau
Dec 2024150.70 +1.8 - 143.7 Labour Bureau
Nov 2024148.90 +0.5 - 144.5 Labour Bureau
Oct 2024148.40 +0.5 - 144.5 Labour Bureau
Sep 2024147.90 -0.2 - 143.3 Labour Bureau
Aug 2024148.10 -1.0 - 142.6 Labour Bureau
Jul 2024149.10 -2.1 - 142.7 Labour Bureau
Jun 2024151.20 +4.9 - 141.4 Labour Bureau
May 2024146.30 +2.5 - 139.9 Labour Bureau
Apr 2024143.80 +1.9 - 139.4 Labour Bureau
Mar 2024141.90 +0.4 - 138.9 Labour Bureau
Feb 2024141.50 +0.1 - 139.2 Labour Bureau
Jan 2024141.40 - - 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.