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 Virudhu Nagar (Tamil Nadu) Tamil Nadu

MonthIndexChange on previous month Change over 12 monthsAll IndiaSource
Aug 2026162.20 -0.3 +5.39 % 154.4 Labour Bureau
Jul 2026162.50 +2.0 +6.56 % 153.2 Labour Bureau
Jun 2026160.50 -0.2 +5.59 % 151.9 Labour Bureau
May 2026160.70 +4.9 +7.20 % 150.8 Labour Bureau
Apr 2026155.80 +1.2 +5.70 % 149.9 Labour Bureau
Mar 2026154.60 -1.9 +4.88 % 149.1 Labour Bureau
Feb 2026156.50 -1.9 +5.53 % 148.5 Labour Bureau
Jan 2026158.40 -0.7 +6.17 % 148.6 Labour Bureau
Dec 2025159.10 +2.3 +5.22 % 148.2 Labour Bureau
Nov 2025156.80 +1.9 +4.53 % 148.2 Labour Bureau
Oct 2025154.90 +2.7 +3.06 % 147.7 Labour Bureau
Sep 2025152.20 -1.7 +1.47 % 147.3 Labour Bureau
Aug 2025153.90 +1.4 +1.32 % 147.1 Labour Bureau
Jul 2025152.50 +0.5 +1.13 % 146.5 Labour Bureau
Jun 2025152.00 +2.1 +0.86 % 145.0 Labour Bureau
May 2025149.90 +2.5 +2.60 % 144.0 Labour Bureau
Apr 2025147.40 0.0 +2.36 % 143.5 Labour Bureau
Mar 2025147.40 -0.9 +3.51 % 143.0 Labour Bureau
Feb 2025148.30 -0.9 +4.29 % 142.8 Labour Bureau
Jan 2025149.20 -2.0 +3.47 % 143.2 Labour Bureau
Dec 2024151.20 +1.2 - 143.7 Labour Bureau
Nov 2024150.00 -0.3 - 144.5 Labour Bureau
Oct 2024150.30 +0.3 - 144.5 Labour Bureau
Sep 2024150.00 -1.9 - 143.3 Labour Bureau
Aug 2024151.90 +1.1 - 142.6 Labour Bureau
Jul 2024150.80 +0.1 - 142.7 Labour Bureau
Jun 2024150.70 +4.6 - 141.4 Labour Bureau
May 2024146.10 +2.1 - 139.9 Labour Bureau
Apr 2024144.00 +1.6 - 139.4 Labour Bureau
Mar 2024142.40 +0.2 - 138.9 Labour Bureau
Feb 2024142.20 -2.0 - 139.2 Labour Bureau
Jan 2024144.20 - - 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.