**Executive Summary**
The Ministry of Statistics and Programme Implementation (MoSPI) held a pre-release consultative workshop on December 23, 2025, in New Delhi, regarding the base revision of GDP, CPI, and IIP. The workshop aimed to enhance transparency and facilitate broad-based consultation before the release of the revised series. The new series of National Accounts and IIP with FY 2022-23 as base year are scheduled to be released on 27th February, 2026 and 28th May, 2026 respectively, whereas the new series of CPI with base year 2024 is scheduled to be released 12th February, 2026.
**Key Points / Main Content**
* **Workshop Objectives:**
* Strengthen transparency and foster informed dialogue.
* Ensure broad-based consultation before releasing revised GDP, CPI, and IIP series.
* Share proposed methodological and structural improvements.
* **Revised Series Highlights:**
* New series of National Accounts and IIP with FY 2022-23 as base year are scheduled to be released on 27th February, 2026 and 28th May, 2026 respectively.
* The new series of CPI with base year 2024 is scheduled to be released 12th February, 2026.
* Use of Annual Survey of Unincorporated Sector Enterprises for measuring the informal sector.
* Use of Double Deflation and Volume or Single Extrapolation, replacing Single Deflation.
* Use of new data sources like GST and PFMS.
* Integration of Supply and Use Table (SUT) with National Accounts Framework.
* Real-time data collection and enhanced coverage of rural and urban markets for CPI.
* Compilation of IIP at a more granular level.
* **Key Discussions:**
* Three technical sessions were conducted on National Accounts, CPI, and IIP.
* Proposed improvements in the revised series were presented, followed by open house discussions.
* **Information Accessibility:**
* Proposed improvements are available as discussion papers on the MoSPI website (www.mospi.gov.in).
* Users can share feedback/comments/suggestions with the Ministry.
**Impact Analysis**
**Stakeholder:** Data Users of National Accounts, CPI, and IIP.
* **Impact:** Have the opportunity to understand the proposed improvements in the revised series and engage in discussions.
* **Action Required:** Review the discussion papers on the MoSPI website and provide feedback/comments/suggestions to the Ministry.
**Stakeholder:** Researchers, Experts, and Economists.
* **Impact:** The workshop provides a platform to understand the improvements being introduced in the new series of GDP, CPI, and IIP.
* **Action Required:** Analyze the presented methodologies and improvements and share expertise and insights with MoSPI.
**Stakeholder:** Ministry of Statistics and Programme Implementation (MoSPI).
* **Impact:** Responsible for organizing the workshop, gathering feedback, and implementing improvements in the revised series.
* **Action Required:** Review and incorporate feedback from data users and experts into the final revisions of GDP, CPI, and IIP. Ensure all improvements are aligned with internationally accepted guidelines.
Key Entities Referenced
Ministry of Statistics and Programme Implementation (MoSPI): The organizer of the consultative workshop focused on the base revision of GDP, CPI, and IIP.
Gross Domestic Product (GDP): One of the key economic indicators whose base revision was discussed at the workshop.
Consumer Price Index (CPI): One of the key economic indicators whose base revision was discussed at the workshop.
Index of Industrial Production (IIP): One of the key economic indicators whose base revision was discussed at the workshop.
New Delhi: Location of the workshop at Bharat Mandapam, Pragati Maidan.
Ministry of Statistics & Programme Implementation
MoSPI organises Pre-release Consultative
Workshop on the Base Revision of GDP, CPI and
IIP on 23rd December 2025 at Bharat
Mandapam, New Delhi
प्रव तथ: 23 DEC 2025 7:30PM by PIB Delhi
The Ministry of Statistics and Programme Implementation (MoSPI) organised the Second Pre-release
Consultative Workshop on the Base Revision of the Gross Domestic Product (GDP), Consumer Price
Index (CPI) and Index of Industrial Production (IIP) on 23rd December, 2025 at Bharat Mandapam,
Pragati Maidan, New Delhi. The First Pre-release Consultative Workshop was held on 26th November,
2025 at Mumbai.
The primary objective of the workshop was to strengthen transparency, foster informed dialogue and
ensure broad-based consultation before the release of the revised series of GDP, CPI, and IIP by way of
sharing proposed methodological and structural improvements with the participants. New series of
National Accounts and IIP with FY 2022-23 as base year are scheduled to be released on 27th February,
2026 and 28th May, 2026 respectively, whereas the new series of CPI with base year 2024 is scheduled to
be released 12th February, 2026.
Inaugural session of the Workshop was graced by the distinguished dignitaries, including Shri Suman K.
Bery, Vice Chairman, NITI Aayog as the Chief Guest, Dr. Saurabh Garg, Secretary, MoSPI, Dr. V.
Anantha Nageswaran, Chief Economic Advisor and Shri N. K. Santoshi, Director General (Central
Statistics), MoSPI. The workshop brought together a wide spectrum of participants, including eminent
economists, experts from financial institutions and the banking sector, subject-matter specialists, users of
core statistics, and senior officials from the Central and State Governments.
In his inaugural address, Shri Suman K. Bery, Vice Chairman, NITI Aayog and the Chief Guest of the
event emphasized the importance of engaging with various data users and stakeholders to address the
issues regarding reliability and credibility of statistics produced by MoSPI and added that the pre-release
consultative workshop is a welcome step in that direction. As the country is transitioning towards upper
middle-income country in short to medium term, he opined the need of accurate data for tracking this
progress.Dr. Saurabh Garg, Secretary, MoSPI, in his address, highlighted the importance of data-driven decision
making for realizing the goal of ‘Viksit Bharat 2047’. Delineating the salient features of the revised series,
he highlighted the use of Annual Survey of Unincorporated Sector Enterprises for measuring the informal
sector; use of Double Deflation and Volume or Single Extrapolation in place Single Deflation; use of new
data sources like Goods and Services Tax (GST) and Public Finance Management System (PFMS) which
are available at a relatively shorter time lag; integration of Supply and Use Table (SUT) framework with
National Accounts Framework to address the issue of statistical discrepancy; real time data collection and
enhanced coverage of rural and urban markets for CPI; and, compilation of IIP at more granular level.
Dr. V. Anantha Nageswaran, Chief Economic Advisor, in his address, commended the effort of MoSPI to
organize the workshop to afford an opportunity to researchers, experts and various data users to
understand the improvements being introduced in new series of GDP, CPI and IIP. He opined that
measuring informal sector is relatively more challenging. However, a methodology which is transparent,
enables generation of consistent estimates over a period of time and helps capture real picture of economy
can be considered as a reasonably sound methodology.
In the welcome address, Shri N. K. Santoshi, Director General (Central Statistics), MoSPI expressed
gratitude to the Chief Guest and other participants for gracing the workshop. He informed the participants
about the mechanism followed in the base revision exercise and highlighted that expert committees
constituted to steer the base revision of GDP, CPI and IIP held numerous meetings to arrive at the
improvements being introduced in the new series. The methodologies proposed to be employed in the new
series are as per the guidelines accepted internationally.Inaugural session was followed by three technical sessions, one each on National Accounts, CPI and IIP,
wherein proposed improvements in the revised series were presented. Presentations were followed by
open house discussion, where queries of participants were addressed. Proposed improvements in the new
series are also available on the website of the Ministry (www.mospi.gov.in) in the form of discussion
papers. Users of National Accounts, CPI and IIP data may share feedback/comments/suggestions with the
Ministry on the proposed changes.
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