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.

Download CPI-IW (CSV)
CPI-IW - labour (89 centres) WPI 2022-23 (1136 items) WPI 2011-12 (869 items) Custom - user defined (1) By centre By month

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 - Aug 2026 89 series

CentreGroupIndex Change on previous monthChange over 12 months
CPI-IW All IndiaCPI-IW - All India154.40 +1.2 +4.96 % all months
CPI-IW Guntur (Andhra Pradesh)CPI-IW - Andhra Pradesh164.90 +4.3 +7.01 % all months
CPI-IW Nellore (Andhra Pradesh)CPI-IW - Andhra Pradesh151.80 +0.2 +5.93 % all months
CPI-IW Visakhapatnam (Andhra Pradesh)CPI-IW - Andhra Pradesh163.20 +2.8 +3.75 % all months
CPI-IW Biswanath-Chariali (Assam)CPI-IW - Assam156.30 +0.9 +1.30 % all months
CPI-IW Doom-Dooma Tinsukia (Assam)CPI-IW - Assam159.40 +0.9 +1.72 % all months
CPI-IW Guwahati (Assam)CPI-IW - Assam165.10 +1.8 +6.93 % all months
CPI-IW Labac-Silchar (Assam)CPI-IW - Assam150.90 +0.4 +4.43 % all months
CPI-IW Numaligarh-Golaghat (Assam)CPI-IW - Assam159.30 +1.0 +4.25 % all months
CPI-IW Sibsagar (Assam)CPI-IW - Assam150.00 +1.2 -0.92 % all months
CPI-IW Munger-Jamalpur (Bihar)CPI-IW - Bihar157.10 +2.7 +3.36 % all months
CPI-IW Patna (Bihar)CPI-IW - Bihar156.40 +4.1 +7.86 % all months
CPI-IW Chandigarh (Chandigarh(UT))CPI-IW - Chandigarh(UT)159.50 +1.2 +3.04 % all months
CPI-IW Bhilai (Chhattisgarh)CPI-IW - Chhattisgarh144.30 +4.2 +6.73 % all months
CPI-IW Korba (Chhattisgarh)CPI-IW - Chhattisgarh166.40 +1.4 +6.80 % all months
CPI-IW Raipur (Chhattisgarh)CPI-IW - Chhattisgarh149.30 +0.8 +6.57 % all months
CPI-IW Dadra & Nagar Haveli (Dadra & Nagar Haveli(UT))CPI-IW - Dadra & Nagar Haveli(UT)151.30 -0.3 +6.10 % all months
CPI-IW Delhi (Delhi(NCT))CPI-IW - Delhi(NCT)150.30 +0.5 +5.77 % all months
CPI-IW Goa (Goa)CPI-IW - Goa150.00 +1.4 +7.99 % all months
CPI-IW Ahmedabad (Gujarat)CPI-IW - Gujarat156.50 +0.9 +8.53 % all months
CPI-IW Bhavnagar (Gujarat)CPI-IW - Gujarat142.20 +0.5 +3.95 % all months
CPI-IW Rajkot (Gujarat)CPI-IW - Gujarat146.20 +0.2 +3.54 % all months
CPI-IW Surat (Gujarat)CPI-IW - Gujarat145.90 +0.2 +7.52 % all months
CPI-IW Vadodara (Gujarat)CPI-IW - Gujarat142.40 +0.1 +4.09 % all months
CPI-IW Faridabad (Haryana)CPI-IW - Haryana152.90 +0.6 +2.69 % all months
CPI-IW Gurugram (Haryana)CPI-IW - Haryana157.40 +0.1 +5.07 % all months
CPI-IW Yamunanagar (Haryana)CPI-IW - Haryana158.90 +0.2 +4.27 % all months
CPI-IW Himachal Pradesh (Himachal Pradesh)CPI-IW - Himachal Pradesh147.60 +0.6 +3.00 % all months
CPI-IW Jammu & Kashmir (Jammu & Kashmir)CPI-IW - Jammu & Kashmir153.90 +0.5 +3.57 % all months
CPI-IW Bokaro (Jharkhand)CPI-IW - Jharkhand142.20 +0.5 +1.28 % all months
CPI-IW Dhanbad-Jharia (Jharkhand)CPI-IW - Jharkhand158.40 0.0 +2.19 % all months
CPI-IW Jamshedpur (Jharkhand)CPI-IW - Jharkhand160.60 +1.5 -0.06 % all months
CPI-IW Ramgarh (Jharkhand)CPI-IW - Jharkhand168.90 +4.9 +6.70 % all months
CPI-IW Belgaum (Karnataka)CPI-IW - Karnataka157.00 +0.1 +3.36 % all months
CPI-IW Bengaluru (Karnataka)CPI-IW - Karnataka152.10 +0.9 +4.11 % all months
CPI-IW Chikmagalur (Karnataka)CPI-IW - Karnataka157.10 +3.2 +6.51 % all months
CPI-IW Davanagere (Karnataka)CPI-IW - Karnataka169.40 +2.6 +8.31 % all months
CPI-IW Hubli-Dharwad (Karnataka)CPI-IW - Karnataka149.30 +0.5 +4.77 % all months
CPI-IW Mercara-Kodagu (Karnataka)CPI-IW - Karnataka162.20 +1.2 +5.81 % all months
CPI-IW Mysore (Karnataka)CPI-IW - Karnataka155.90 +0.6 +4.35 % all months
CPI-IW Ernakulam/Alwaye (Kerala)CPI-IW - Kerala159.00 -0.7 +1.53 % all months
CPI-IW Idukki (Kerala)CPI-IW - Kerala164.60 -0.3 +5.78 % all months
CPI-IW Kollam (Kerala)CPI-IW - Kerala164.00 +0.1 +5.67 % all months
CPI-IW Bhopal (Madhya Pradesh)CPI-IW - Madhya Pradesh148.70 +0.8 +5.99 % all months
CPI-IW Chhindwara (Madhya Pradesh)CPI-IW - Madhya Pradesh152.50 +0.3 +3.25 % all months
CPI-IW Indore (Madhya Pradesh)CPI-IW - Madhya Pradesh145.00 +1.5 +6.15 % all months
CPI-IW Jabalpur (Madhya Pradesh)CPI-IW - Madhya Pradesh154.40 +1.5 +6.41 % all months
CPI-IW Mumbai (Maharashtra)CPI-IW - Maharashtra141.50 +0.4 +4.20 % all months
CPI-IW Nagpur (Maharashtra)CPI-IW - Maharashtra155.20 +0.3 +5.08 % all months
CPI-IW Nasik (Maharashtra)CPI-IW - Maharashtra153.20 +0.1 +5.87 % all months
CPI-IW Pune (Maharashtra)CPI-IW - Maharashtra145.50 +1.2 +5.36 % all months
CPI-IW Solapur (Maharashtra)CPI-IW - Maharashtra160.60 -1.1 +5.24 % all months
CPI-IW Thane (Maharashtra)CPI-IW - Maharashtra144.00 +1.0 +3.00 % all months
CPI-IW Shillong (Meghalaya)CPI-IW - Meghalaya160.00 +3.9 +5.12 % all months
CPI-IW Angul-Talchar (Odisha)CPI-IW - Odisha162.40 +0.9 +4.98 % all months
CPI-IW Cuttack (Odisha)CPI-IW - Odisha163.10 +2.4 +4.35 % all months
CPI-IW Keonjhar (Odisha)CPI-IW - Odisha159.00 +3.0 +5.44 % all months
CPI-IW Puducherry (Puducherry(UT))CPI-IW - Puducherry(UT)176.00 +0.6 +4.76 % all months
CPI-IW Amritsar (Punjab)CPI-IW - Punjab153.50 +1.8 +7.64 % all months
CPI-IW Jalandhar (Punjab)CPI-IW - Punjab169.30 +1.7 +7.29 % all months
CPI-IW Ludhiana (Punjab)CPI-IW - Punjab159.50 +3.1 +5.49 % all months
CPI-IW Sangrur (Punjab)CPI-IW - Punjab154.20 +1.0 +2.87 % all months
CPI-IW Alwar (Rajasthan)CPI-IW - Rajasthan144.90 +1.4 +5.23 % all months
CPI-IW Bhilwara (Rajasthan)CPI-IW - Rajasthan145.10 +0.9 +4.16 % all months
CPI-IW Jaipur (Rajasthan)CPI-IW - Rajasthan138.60 +1.1 +5.00 % all months
CPI-IW Chennai (Tamil Nadu)CPI-IW - Tamil Nadu147.30 +1.6 +5.97 % all months
CPI-IW Coimbatore (Tamil Nadu)CPI-IW - Tamil Nadu160.90 +4.3 +11.50 % all months
CPI-IW Coonoor (Tamil Nadu)CPI-IW - Tamil Nadu150.60 -0.6 +3.86 % all months
CPI-IW Madurai (Tamil Nadu)CPI-IW - Tamil Nadu165.60 +0.5 +5.81 % all months
CPI-IW Salem (Tamil Nadu)CPI-IW - Tamil Nadu151.60 +0.4 +4.05 % all months
CPI-IW Tirunelveli (Tamil Nadu)CPI-IW - Tamil Nadu170.30 -0.1 +4.80 % all months
CPI-IW Virudhu Nagar (Tamil Nadu)CPI-IW - Tamil Nadu162.20 -0.3 +5.39 % all months
CPI-IW Hyderabad (Telangana)CPI-IW - Telangana153.90 +1.0 +5.34 % all months
CPI-IW Mancheriyal (Telangana)CPI-IW - Telangana168.50 0.0 +2.37 % all months
CPI-IW Warangal (Telangana)CPI-IW - Telangana157.20 0.0 +3.29 % all months
CPI-IW Tripura (Tripura)CPI-IW - Tripura147.10 +1.5 +3.81 % all months
CPI-IW Agra (Uttar Pradesh)CPI-IW - Uttar Pradesh158.80 +3.0 +5.51 % all months
CPI-IW Ghaziabad/G.B. Nagar (Uttar Pradesh)CPI-IW - Uttar Pradesh157.10 +0.5 +4.94 % all months
CPI-IW Kanpur (Uttar Pradesh)CPI-IW - Uttar Pradesh154.60 -0.2 +5.75 % all months
CPI-IW Lucknow (Uttar Pradesh)CPI-IW - Uttar Pradesh162.10 +3.9 +7.42 % all months
CPI-IW Varanasi (Uttar Pradesh)CPI-IW - Uttar Pradesh155.60 +1.4 +4.50 % all months
CPI-IW Udham Singh Nagar (Uttarakhand)CPI-IW - Uttarakhand165.60 +1.0 +5.28 % all months
CPI-IW Darjeeling (West Bengal)CPI-IW - West Bengal138.40 +0.9 +6.38 % all months
CPI-IW Durgapur (West Bengal)CPI-IW - West Bengal151.80 +2.7 +2.92 % all months
CPI-IW Haldia (West Bengal)CPI-IW - West Bengal139.00 +3.1 +8.26 % all months
CPI-IW Howrah (West Bengal)CPI-IW - West Bengal154.70 +1.1 +3.41 % all months
CPI-IW Jalpaiguri (West Bengal)CPI-IW - West Bengal146.00 +0.7 +3.62 % all months
CPI-IW Kolkata (West Bengal)CPI-IW - West Bengal154.90 +2.1 +4.73 % all months
CPI-IW Raniganj (West Bengal)CPI-IW - West Bengal159.40 +1.3 +3.78 % all months