source register

Every source behind every number

52 sources, grouped by tier. Tier 1 is the primary record holder for that quantity; tier 3 is a press report of a primary claim. A series resting only on tier-3 sources cannot be graded above low confidence. For what each publisher covers, how often it refreshes and where it falls short, see the data source catalogue.

Tier 1

primary record17

World Development Indicatorsmultilateral
World Bank
accessed 2026-08-17backs 689 series: GDP, nominal, GDP (current US$), GDP growth, +686 more
Economic Survey — statistical tables behind the charts (tabchart workbooks)official
Ministry of Finance, Government of India
accessed 2026-08-21backs 8 series: Mobile data price per GB, Mobile data used per subscriber, Electric vehicles registered, +5 more
SIPRI Military Expenditure Databasethink-tank
Stockholm International Peace Research Institute
accessed 2026-08-17backs 7 series: Military expenditure, Military expenditure (US$), Military expenditure as share of government spending, +4 more
Year End Review 2025 — Ministry of Road Transport & Highwaysofficial
Press Information Bureau, Government of India
accessed 2026-08-17backs 4 series: National highway network length, National highways constructed per year, Access-controlled high-speed corridors and expressways, +1 more
Major ports record 915 million tonnes cargo in FY 2025-26official
Press Information Bureau, Government of India
accessed 2026-08-17backs 4 series: Cargo handled at major ports, Cargo handled at all ports, Total port capacity, +1 more
Defence exports surge to a record ₹23,622 crore in FY 2024-25, growth of 12.04%official
Press Information Bureau, Government of India
accessed 2026-08-17backs 4 series: Defence exports, Private sector share of defence exports, Defence export authorisations issued, +1 more
2025 Year End Review — Department of Commerceofficial
Press Information Bureau, Government of India
accessed 2026-08-17backs 4 series: Total exports (goods + services), Merchandise exports, Services exports, +1 more
TRAI — Quarterly Performance Indicator Reportofficial
Telecom Regulatory Authority of India
accessed 2026-08-29backs 4 series: Rural tele-density by service area, Urban tele-density by service area, Tele-density by service area, +1 more
India's Metro Revolution: From Miles to Milestones (August 2025)official
Press Information Bureau, Government of India
accessed 2026-08-17backs 3 series: Operational metro rail network, Cities with operational metro rail, Daily metro rail ridership
Defence production at an all-time high of ₹1.51 lakh crore in FY 2024-25official
Press Information Bureau, Government of India
accessed 2026-08-17backs 2 series: Defence production, Private sector share of defence production
Trends in International Arms Transfers, 2024 (fact sheet, March 2025)think-tank
Stockholm International Peace Research Institute
accessed 2026-08-17backs 2 series: India's share of global major-arms imports, Russia's share of India's arms imports
Rajya Sabha Q.1870 — airports, greenfield approvals and operational statusofficial
Ministry of Civil Aviation, Government of India
accessed 2026-08-17backs 2 series: Operational airports, Airports by classification
Defence exports touch record ₹21,083 crore in FY 2023-24; private sector 60%, DPSUs 40%official
Press Information Bureau, Government of India
accessed 2026-08-17backs 2 series: Defence exports, Private sector share of defence exports
Record over ₹6.81 lakh crore allocated in Union Budget 2025-26 for MoD, up 9.53%official
Press Information Bureau, Government of India
accessed 2026-08-17backs 2 series: Ministry of Defence budget allocation, Defence capital outlay
The Defence Decade — ministry review of production and exportsofficial
Press Information Bureau, Government of India
accessed 2026-08-17backs 1 series: Defence production
SIPRI Yearbook 2025, Chapter 6 — World nuclear forcesthink-tank
Stockholm International Peace Research Institute
accessed 2026-08-17backs 1 series: Estimated nuclear warhead inventory
Year End Review 2024 — Ministry of Road Transport & Highwaysofficial
Press Information Bureau, Government of India
accessed 2026-08-17backs 1 series: National highways constructed per year

Tier 2

secondary compiler20

Fatalities in Left-Wing Extremism, 2000–2026 (datasheet)think-tank
South Asia Terrorism Portal, Institute for Conflict Management
accessed 2026-08-19backs 7 series: Action Index — left-wing extremism, Left-wing extremist attacks, Civilians killed — left-wing extremism, +4 more
Fatalities in terrorist violence, 1988–2026 (datasheet)think-tank
South Asia Terrorism Portal, Institute for Conflict Management
accessed 2026-08-19backs 7 series: Action Index — terrorism, Terrorist attacks, Civilians killed — terrorism, +4 more
WHO Global Health Observatory — suicide mortality (SDGSUICIDE, MH_12)multilateral
World Health Organization
accessed 2026-08-23backs 7 series: Suicide rate, Suicide rate — men, Suicide rate — women, +4 more
Computed on this site from the cited underlying seriesderived
Bharat Tracker
accessed 2026-08-17backs 5 series: Services exports by segment, Action Index — left-wing extremism, Tonality Score — left-wing extremism, +2 more
SATP — Punjab fatalities datasheetthink-tank
South Asia Terrorism Portal
accessed 2026-08-23backs 5 series: Civilians killed — Punjab, Security force personnel killed — Punjab, Militants killed — Punjab, +2 more
PSLV: the rocket that launches nearly every second ISRO satellitepress
FACTLY / Dataful
accessed 2026-08-17backs 4 series: ISRO launch missions, cumulative, ISRO launch cadence by era, ISRO missions by launch vehicle, +1 more
India's airports increase from 74 to 160 under UDAN schemeofficial
All India Radio News (Prasar Bharati)
accessed 2026-08-17backs 3 series: Operational airports, Aerodromes operationalised under UDAN, UDAN routes inaugurated
India records highest-ever defence production of ₹1.54 lakh crore in 2024-25official
All India Radio News (Prasar Bharati)
accessed 2026-08-17backs 1 series: Defence production
Ministry of Defence reports record defence exports of ₹38,424 crore in FY 2025-26official
All India Radio News (Prasar Bharati)
accessed 2026-08-17backs 1 series: Defence exports
India's defence exports surge 34-fold over a decadeofficial
DD News (Prasar Bharati)
accessed 2026-08-17backs 1 series: Defence exports
India's National Highways record 60% growth in last 10 yearsofficial
DD News (Prasar Bharati)
accessed 2026-08-17backs 1 series: National highway network length
157 airports operational across country; UDAN scheme revolutionises air travelofficial
All India Radio News (Prasar Bharati)
accessed 2026-08-17backs 1 series: Operational airports
Cargo handled by India's major ports surges to record 855 million tonnes in FY25official
All India Radio News (Prasar Bharati)
accessed 2026-08-17backs 1 series: Cargo handled at major ports
India's Defence Exports: Recent Trends and the Way Forward (year-wise table)think-tank
Vivekananda International Foundation
accessed 2026-08-17backs 1 series: Defence exports
Demand for Grants 2026-27 Analysis — Defencethink-tank
PRS Legislative Research
accessed 2026-08-17backs 1 series: Ministry of Defence budget allocation
Ministry of Defence fully utilises ₹1.86 lakh crore capital outlay for FY 2025-26official
All India Radio News (Prasar Bharati)
accessed 2026-08-17backs 1 series: Defence capital outlay
India's total exports reach record US$863.1 billion in 2025-26official
All India Radio News (Prasar Bharati)
accessed 2026-08-17backs 1 series: Total exports (goods + services)
India's exports hit record US$820.93 billion in FY25, up 5.5%official
All India Radio News (Prasar Bharati)
accessed 2026-08-17backs 1 series: Total exports (goods + services)
UN Comtrade — India annual merchandise trade by HS6 commoditymultilateral
United Nations Statistics Division
accessed 2026-09-01activated by the pipeline on first run
UN Comtrade — Harmonised System classification referencemultilateral
United Nations Statistics Division
accessed 2026-09-01activated by the pipeline on first run

Tier 3

press report15

Two defence industrial corridors attract ₹70,000 crore investmentpress
Indian Masterminds
accessed 2026-08-17backs 5 series: Defence corridor investment committed, Defence corridor investment grounded, Defence industrial corridors by status, +2 more
Industries invest over ₹6,200 crore in defence corridors of UP and Tamil Nadupress
Swarajya
accessed 2026-08-17backs 4 series: Defence corridor investment committed, Defence corridor investment grounded, Defence industrial corridors by status, +1 more
India's total exports hit record US$863 bn in FY26, services surge 8.71%press
BW Businessworld
accessed 2026-08-17backs 4 series: Total exports (goods + services), Merchandise exports, Services exports, +1 more
India second-largest arms importer after Ukraine, reliance on Russia declinespress
ThePrint
accessed 2026-08-17backs 2 series: India's share of global major-arms imports, Russia's share of India's arms imports
India's National Highways network expands to 146,342 km with 10,660 km built in FY25press
Swarajya
accessed 2026-08-17backs 2 series: National highway network length, National highways constructed per year
Workhorse PSLV to 'naughty boy' GSLV — ISRO's 100 space missionspress
The Federal
accessed 2026-08-17backs 2 series: ISRO launch missions, cumulative, ISRO missions by launch vehicle
India's defence exports grew to ₹23,622 cr in FY2024-25, private sector 64%press
ThePrint
accessed 2026-08-17backs 1 series: Defence exports
Construction of national highways at 10,331 km in 2022-23press
Deccan Herald
accessed 2026-08-17backs 1 series: National highways constructed per year
India's major ports cut vessel turnaround time to 48.84 hours in FY26press
Construction Mirror
accessed 2026-08-17backs 1 series: Average vessel turnaround time at major ports
India exported military hardware worth ₹15,920 crore in 2022-23press
Deccan Herald
accessed 2026-08-17backs 1 series: Defence exports
Defence budget through the years: what the numbers since 1999 revealpress
ThePrint
accessed 2026-08-17backs 1 series: Ministry of Defence budget allocation
India emerges as the world's 3rd largest metro rail networkpress
Metro Rail Today
accessed 2026-08-17backs 1 series: Operational metro rail network
India achieved 7.8% growth despite wars, instabilitypress
The Hindu BusinessLine
accessed 2026-09-01activated by the pipeline on first run
Why India Q1 real and nominal GDP are table-thumping numberspress
Mint
accessed 2026-09-01activated by the pipeline on first run
GDP grows 7.8% in Q1 FY2026-27press
NDTV Profit
accessed 2026-09-01activated by the pipeline on first run