₹1,00,000 × index(t) ÷ index(2004)Independent visual journalism
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Story method · Prices
How we compared ₹1 lakh across 22 years.
A transparent account of the source series, June-to-June convention, statistical splice and purchasing-power calculations used in the story.
Return to the story →Result and scope
One comparison, three source segments.
Junesame-month comparisons 2004=100story reference level 3.899×June 2004–June 2026 multiplier
Under this linked series, a representative basket costing ₹1,00,000 in June 2004 costs about ₹3,89,901 in June 2026. This is an estimate built from official series, not a claim that one unchanged official CPI basket exists across all 22 years.
Series construction
The evidence chain
- 012004–2013CPI-IW historical extension
June observations are linked to the 2001=100 base and normalised to June 2004=100.
- 022013–2025CPI Combined, 2012 base
The national rural + urban series is joined at the June 2013 overlap.
- 032025–2026CPI Combined, 2024 base
MoSPI's official 0.5267 general-index linking factor and the 2025 overlap preserve the latest ratio.
Reproduce the result
The calculations
amount × index(2026) ÷ index(t)₹1,00,000 ÷ basket cost(t)[index(t) ÷ index(t−1) − 1] × 100Read before using
What this comparison cannot claim.
- 1
India has no single unchanged CPI Combined basket covering the entire 2004–2026 period.
- 2
CPI-IW represents industrial-worker households and is used only to extend the history before CPI Combined begins.
- 3
The 2013 splice is an analytical construction; it is not an official back series for the full period.
- 4
June 2026 is provisional and may be revised by MoSPI.
- 5
A national index is an average. A household's own inflation depends on what it buys and where it lives.
- 6
The market-basket objects are visual categories, not claims about literal item quantities or unchanged product quality.
Open method files