CDS / OTA Current Affairs · Economy / Macro Indicators · 24 Jun 2026

Index of Services Production (ISP): India Gets an IIP for Its Biggest Sector

By Aditya Tiwari · 24 Jun 2026 · 10 min read

On 24 June 2026, the Ministry of Statistics and Programme Implementation (MoSPI) announced that it will launch the Index of Services Production (ISP) in July 2026 — a brand-new macro indicator built to track short-term changes in the output of India's formal services sector. The first trial monthly indices, covering 2025-26 and the month of April 2026, are slated for release on 14 July 2026, with a chosen base year of 2024-25. In one line for the exam hall: the ISP is to services what the long-running Index of Industrial Production (IIP) is to industry. For a country where services already generate the majority of national output, that is a long-overdue plug for a glaring data gap — and exactly the kind of "new economic indicator" item the CDS and OTA economy section loves.

What exactly is the ISP?

The Index of Services Production is a monthly, high-frequency index number that will measure the volume of output of the formal services sector and how it changes from period to period. Like the IIP, it is an index — it does not measure rupees of output directly, but the movement of output against a fixed reference point (the base year, set as 2024-25, whose value is taken as 100). If the ISP for a month reads, say, 112, it means formal-services output that month was 12% above the average level of the base year.

A few defining features fix the concept:

Compiler: MoSPI, through its statistical wing the National Statistical Office (NSO) — the same setup that compiles the IIP, the Consumer Price Index (CPI) and the National Accounts (GDP/GVA).
Frequency: monthly, making it a high-frequency indicator (data arrives far faster than the quarterly GDP estimates).
Lag: released with a lag of about 60 days, on the 29th day of every month (or the next working day), once regular release begins.
Coverage: the formal services sector — not the informal/unorganised part, at least to begin with.
Status at launch: trial / experimental, so the early numbers are for users to evaluate the methodology, not yet a final official series.

The base year of 2024-25 is deliberately aligned with India's recently revised CPI series, so that the country's major indicators share a consistent reference period.

Why this matters: the services giant that wasn't being measured

Here is the structural fact that makes the ISP important. India's economy is dominated by services. According to the Economic Survey 2024-25, the services sector's share of Gross Value Added (GVA) rose from 50.6% in FY14 to about 55.3% in FY25 — and it grew the fastest of the three sectors, at roughly 7.2%. So more than half of everything the Indian economy produces comes from services: IT and software, banking and insurance, trade, transport, telecom, real estate, hotels, professional and technical services, and more.

Yet for decades India had no high-frequency, direct measure of services output. Industry had the IIP since the 1930s-40s lineage of industrial statistics; agriculture had crop estimates and area-yield data. But the largest sector of the economy was effectively flying without its own monthly instrument — policymakers had to infer services momentum from scattered proxies (bank credit, rail and air traffic, GST collections, PMI surveys) until the quarterly GDP numbers caught up. That asymmetry — industry well-measured, services under-measured — is the data gap the ISP is built to close. As our CDS/OTA economy notes stress, you cannot manage what you cannot measure, and a sector worth 55% of GVA was being managed largely by proxy.

How the ISP will be built

MoSPI's approach paper (released 27 April 2026 for public comment) sets out the machinery, and it is worth knowing in outline because the examiner likes the "how is it compiled" angle:

Data sources — three streams. (1) Administrative records for railways, air transport, banking and insurance; (2) GST data on outward supplies for the bulk of market services — wholesale and retail trade, real estate, telecom, professional services; and (3) the Annual Survey of Incorporated Services Sector Enterprises (ASISSE). The heavy reliance on GST returns is the modern twist: the GST network has, almost as a by-product, created a near-real-time map of services activity.
Index formula: a fixed-weight Laspeyres volume index, with weights drawn from each sub-sector's share in GVA as published in the National Accounts Statistics (NAS). (A Laspeyres index holds the base-period weights fixed — the same family of formula used across India's price and production indices.)
Sub-sectoral indices: MoSPI will release an overall ISP plus sub-sectoral indices, so analysts can see which services are pulling the index up or down.

Two big services — health and education — are deliberately left out at the start. They will be folded into the ISP framework later, once the results of the ASISSE survey are available. Knowing that the launch ISP is not yet fully comprehensive is a sharp distinguishing detail.

The institutional and committee setup

CDS/OTA general-knowledge questions reward candidates who can name the right body, so fix the institutional map:

MoSPI (Ministry of Statistics and Programme Implementation): the nodal ministry for India's official statistics; it houses the NSO.
NSO (National Statistical Office): MoSPI's statistical arm, formed by merging the erstwhile CSO (Central Statistics Office) and NSSO (National Sample Survey Office). The NSO is the body that actually compiles the IIP, CPI and national accounts — and now the ISP.
Technical Advisory Committee (TAC) on ISP: constituted in May 2025 under the chairpersonship of Ms Debjani Ghosh, a distinguished fellow at NITI Aayog, to finalise the conceptual and methodological framework. The TAC includes academia, industry associations and services-sector ministries.

So the chain to remember is simple: MoSPI → NSO compiles → TAC (chaired by Debjani Ghosh) advised on methodology → ISP launches July 2026.

Where the ISP fits among India's macro indicators

The single most exam-useful skill here is to slot the ISP correctly into the family of indicators. Macro indicators split broadly into production/output measures and price measures:

Output / production indicators - GDP / GVA — the comprehensive measure of national output; compiled quarterly and annually by NSO. (GVA = output by sector before product taxes; GDP = GVA + product taxes − subsidies.) - IIP (Index of Industrial Production) — monthly index of industrial output (mining, manufacturing, electricity); base year 2011-12; compiled by NSO/MoSPI. - ISP (Index of Services Production) — the new monthly index of services output; base year 2024-25. The missing third leg.

Price indicators - CPI (Consumer Price Index) — retail inflation faced by households; compiled by NSO/MoSPI; the RBI's inflation-targeting anchor (4% ± 2%). See our dedicated inflation explainer for the CPI-vs-WPI distinction. - WPI (Wholesale Price Index) — wholesale/producer inflation; compiled by the Office of the Economic Adviser, Ministry of Commerce & Industry (note: a different ministry from CPI).

Sentiment / survey indicators - PMI (Purchasing Managers' Index) — a monthly survey-based index (manufacturing and services) compiled by a private agency (S&P Global), not the government. A PMI above 50 signals expansion. The PMI is a sentiment gauge; the ISP, by contrast, will be a hard-data, volume measure — a key contrast.

Read this way, the ISP completes a logical set: IIP for industry, ISP for services, and crop/agri data for agriculture, all feeding into the bigger GDP/GVA picture, alongside the price indices (CPI, WPI) and the survey-based PMI. The IIP-vs-ISP pairing — same compiler, same monthly cadence, same index logic, but one for industry and one for services — is the most likely single MCQ. You will see this family of indicators recur across our daily CDS/OTA current affairs.

Why a high-frequency services indicator matters for policy

Beyond filling a gap, the ISP has real analytical value, and a one-mark question can hinge on "why does this matter":

GDP nowcasting. Quarterly GDP arrives with a long lag. A monthly services index — covering the sector that is 55% of GVA — gives economists a much earlier read on where growth is heading, improving short-term "nowcasting" of GDP.
Sharper policy. The RBI (monetary policy) and the Finance Ministry (fiscal policy) can respond faster when they can see services momentum in near-real-time rather than waiting for quarterly accounts.
Better data quality. Anchoring on GST and administrative data reduces dependence on sample surveys and proxies, making the services growth story more robust and internationally comparable (MoSPI is aligning the ISP with international best practices, as several advanced economies already publish services-production indices).
Visibility for sub-sectors. Sub-sectoral indices reveal whether, say, transport or finance is driving a slowdown — granularity that aggregate GDP hides.

A quick recap of the testable facts

What: Index of Services Production (ISP) — monthly index of formal services output.
By whom: MoSPI / NSO (same body that compiles the IIP).
Base year: 2024-25 (aligned with the revised CPI).
Trial launch: 14 July 2026 (indices for 2025-26 and April 2026); regular release with a ~60-day lag.
Analogue: the services counterpart of the IIP.
Committee: TAC under Debjani Ghosh (NITI Aayog), set up May 2025.
Data: administrative records + GST data + ASISSE; Laspeyres index, GVA-share weights.
Excluded for now: health and education (added later via ASISSE).
Why services: ~55% of India's GVA (FY25), the largest and fastest-growing sector.

🎯 Practice MCQs

Q1. The Index of Services Production (ISP), to be launched in July 2026, is best described as the counterpart of which existing indicator? (a) Consumer Price Index (b) Index of Industrial Production (c) Wholesale Price Index (d) Purchasing Managers' Index → (b) — the ISP is to the services sector what the IIP (Index of Industrial Production) is to industry: a monthly volume index of output.

Q2. Which body is responsible for compiling the ISP? (a) Reserve Bank of India (b) NITI Aayog (c) Ministry of Statistics and Programme Implementation (MoSPI) / NSO (d) Ministry of Commerce & Industry → (c) — the NSO under MoSPI compiles the ISP, just as it compiles the IIP, CPI and national accounts.

Q4. Approximately what share of India's Gross Value Added (GVA) did the services sector account for in FY25 (Economic Survey 2024-25)? (a) about 25% (b) about 40% (c) about 55% (d) about 70% → (c) — about 55.3% of GVA, up from 50.6% in FY14; services are the largest sector.

Q5. The Technical Advisory Committee that advised MoSPI on the ISP methodology was chaired by: (a) Shaktikanta Das (b) Debjani Ghosh (c) V. Anantha Nageswaran (d) Suman Bery → (b) — Ms Debjani Ghosh, a distinguished fellow at NITI Aayog; the TAC was set up in May 2025.

Q6. The ISP will be released on a monthly basis. With approximately what time lag will the regular indices be published? (a) about 7 days (b) about 30 days (c) about 60 days (d) about 6 months → (c) — about a 60-day lag, on the 29th day of each month (or next working day).

Q7. Which of the following sub-sectors is proposed to be brought into the ISP framework only later (not at launch)? (a) banking (b) transport (c) telecommunications (d) health and education → (d) — health and education will be added later, after the Annual Survey of Incorporated Services Sector Enterprises (ASISSE) results.

Q8. Consider the data sources for the ISP. Which of the following is a major source for compiling the index? (a) census of population (b) GST data on outward supplies (c) foreign exchange reserves data (d) the National Family Health Survey → (b) — the ISP draws heavily on GST data, along with administrative records and the ASISSE survey.

📋 How this gets asked (PYQ pattern)

CDS and OTA economy questions cluster around "which body compiles which indicator" and "match the index to the sector" — the IIP, CPI, WPI, GDP/GVA and PMI are recurring names, with the favourite trap being the WPI (Commerce Ministry) vs CPI (MoSPI/NSO) ministry mix-up and the PMI is private, not government point. The base-year of an index, its compiling agency, and its frequency are classic one-mark hooks. The fresh 2026 angle is the ISP itself: expect a straight "the ISP is the services counterpart of the ____" (answer: IIP) item, a "who launches the ISP" item (MoSPI/NSO), a base-year (2024-25) item, and possibly a services-share-of-GVA (~55%) statement-based question. Because the ISP is genuinely new and clean to frame, it is exactly the sort of single-fact release examiners convert into an MCQ within a year of launch.

Preparing for CDS or OTA? India's macro-indicator family — GDP/GVA, IIP, ISP, CPI, WPI, PMI — is bankable economy GK, and the new ISP is a ready-made 2026 question. Track our daily CDS/OTA current affairs and train with serving-officer-led faculty in the upcoming Cavalier courses in Delhi.

✍️ Written by Aditya Tiwari — Economy & current-affairs faculty at The Cavalier. Reviewed by the Cavalier Faculty Desk. The Cavalier, founded by ex-Army officers, has trained NDA/CDS/SSB aspirants since 2001 (Facebook · YouTube).

Source: PIB release, 24 June 2026. Facts cross-verified.

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