First Release of sub – sectoral Trial Index of Services Production (ISP) (Base Year 2024 -25)

1. At a Glance

2. Why in the News

3. Background & Evolution

4. Core Static Facts

Attribute Detail
Full name Index of Services Production (ISP)
Nodal body Ministry of Statistics & Programme Implementation (MoSPI) [S1]
Base year 2024-25 (aligned with new CPI series base year 2024 for deflator consistency) [S2]
Sub-sectors covered (trial phase) 19
Sectoral coverage ~60% of the (formal) services sector [S1][S2]
First reference month April 2026
Release date of first data 14 July 2026, 4:00 PM (PIB Delhi) [S1]
Release frequency going forward 29th of every month (next working day if holiday), ~60-day lag [S2]
Data sources (1) Administrative data — air/rail transport, banking, insurance; (2) GST outward-supplies data — wholesale/retail trade, telecom, real estate; (3) ASISSE survey — health & education (excluding government) [S2]
Compilation method Fixed-weight Laspeyres volume index using GVA-based sectoral weights [S2]
Sub-sectors included Wholesale & retail trade, transport, banking, insurance, telecommunications, hotels & restaurants, real estate, professional/scientific/technical services, arts, entertainment & recreation, etc. [S2]
Exclusions Public administration, informal-sector services, government health/education, gambling [S2]
Oversight body Technical Advisory Committee on ISP (constituted May 2025, chaired by Debjani Ghosh) [S2]

5. Multi-Dimensional Analysis

Economic - Fills the data gap for real-time services-sector output tracking, complementing IIP (industry) and eventual overall GDP estimates [S2]. - Enables sharper monetary/fiscal policy calibration since services drive >50% of GVA [S2].

Statistical / Methodological - Uses a multi-source data architecture (admin + GST + survey) rather than a single census — reflects MoSPI's move toward alternative/administrative data use, similar to GST-based approaches elsewhere [S2]. - Base year harmonisation with the new CPI (2024) base year is a technical convergence exercise across MoSPI's statistical products [S2].

Administrative / Governance - Currently confined to the formal sector only; informal services (a large share of India's services employment) remain excluded, limiting representativeness [S2]. - Phased rollout (trial → sub-sectoral → eventual overall ISP) shows a cautious, iterative approach to new official statistics, reducing risk of revision-driven credibility loss [S1].

Scientific/Technical - Fixed-weight Laspeyres index methodology — a standard index-number technique also examinable in the context of WPI/CPI/IIP index construction [S2].

6. Recent Developments (last 12-18 months)

7. Prelims Hooks

8. Mains Relevance

9. Related Topics to Study Next

10. Common Errors / Trap Areas

11. Sources