{
  "story": "Is Your ₹1 Lakh Still Worth ₹1 Lakh?",
  "release_date": "2026-08-04",
  "cutoff": "June 2026",
  "comparison_month": "June of each year",
  "reference_year": 2004,
  "reference_amount_rupees": 100000,
  "series": [
    {
      "period": "2004-2013",
      "measure": "All-India CPI for Industrial Workers",
      "publisher": "Labour Bureau; reproduced in Economic Survey statistical tables",
      "treatment": "June observations linked to the 2001=100 base; this is a constructed historical extension and is not CPI Combined"
    },
    {
      "period": "2013-2025",
      "measure": "All-India CPI Combined",
      "publisher": "National Statistics Office, MoSPI",
      "treatment": "June observations on the 2012=100 series, joined at the June 2013 overlap"
    },
    {
      "period": "2025-2026",
      "measure": "All-India CPI Combined",
      "publisher": "National Statistics Office, MoSPI",
      "treatment": "2024=100 series; MoSPI combined linking factor 0.5267 and the published June 2025 overlap preserve the ratio"
    }
  ],
  "formulas": {
    "cost_in_year_t": "100000 * price_level_t / price_level_2004",
    "basket_share": "100000 / cost_in_year_t",
    "equivalent_in_2026": "amount_in_year_t * price_level_2026 / price_level_t",
    "yoy_inflation": "(price_level_t / price_level_t_minus_1 - 1) * 100"
  },
  "key_result": {
    "cost_in_june_2026_of_june_2004_basket_rupees": 389901,
    "purchasing_power_remaining_pct": 25.6,
    "multiplier": 3.899
  },
  "limitations": [
    "India has no single unchanged CPI Combined basket covering 2004-2026.",
    "CPI-IW represents industrial-worker households and is used only for the pre-2013 extension.",
    "The 2013 join is a statistical splice; small changes in the anchor convention change historical equivalences.",
    "June 2026 is provisional and may be revised.",
    "The index describes an average basket, not every household's personal inflation experience.",
    "Illustrated goods represent broad household spending; they are not literal item-level quantity claims."
  ]
}