360° UPSC Mains Analysis
Former chief statistician Pronab Sen seeks two GDP series with old, new bases for five years
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Locations
On the Map
India
Climate & Geology
The country experiences a predominantly tropical monsoon climate, heavily influenced by the Southwest and Northeast monsoons. Geologically, the ongoing collision of the Indian Plate with the Eurasian Plate creates high seismic vulnerability along the Himalayan arc, while the stable Peninsular Shield is relatively quiet.
Physical Context
India is located in South Asia, bordered by Pakistan to the northwest, China, Nepal, and Bhutan to the north, and Bangladesh and Myanmar to the east. It is bounded by the Arabian Sea to the southwest, the Bay of Bengal to the southeast, and the Indian Ocean to the south, occupying a highly strategic maritime position.
Resource Significance
India possesses vast arable land, making agriculture a key economic driver, alongside significant reserves of coal, iron ore, bauxite, and thorium. Its strategic location along major Indian Ocean trade routes facilitates global maritime commerce, which directly influences its GDP and economic growth trajectory.
Background
The systematic estimation of national income in India has its roots in the early post-independence era. In August 1949, the Government of India appointed the National Income Committee, chaired by Professor P.C. Mahalanobis, to compile authoritative estimates of national income. This committee's reports laid the foundation for the Central Statistical Organisation (CSO), now under the Ministry of Statistics and Programme Implementation (MoSPI), to periodically estimate and revise the Gross Domestic Product (GDP) series.
Key Events
Policy Evolution
Since independence, India's GDP base year has been revised periodically to reflect structural changes, technological progress, and evolving consumption patterns. The first systematic base year revision occurred in August 1967, shifting the base from 1948-49 to 1960-61. Subsequent rebasing exercises were carried out for the base years 1970-71, 1980-81, 1993-94, 1999-2000, 2004-05, and 2011-12 (introduced in January 2015). On February 27, 2026, MoSPI officially transitioned to the eighth series with 2022-23 as the base year, guided by the Advisory Committee on National Accounts Statistics (ACNAS) chaired by Professor Biswanath Goldar.
Historical Parallels
The current debate between Pronab Sen and MoSPI over parallel GDP series and back-series calculations closely mirrors the controversy of 2018. Following the 2015 rebasing to 2011-12, the release of the back-series data in late 2018 sparked intense political and academic debate as it revised downwards the high growth rates recorded during the UPA government era (FY2006 to FY2011). Similarly, the transition to the 2022-23 base year in 2026 has reignited debates over the 'base effect' and the comparability of old and new series data.
Freedom Movement Link
The quest for accurate national income estimation in India began during the freedom struggle as a tool to expose colonial exploitation. Dadabhai Naoroji made the first unofficial estimate of India's national income for the year 1867-68 in his seminal work 'Poverty and Un-British Rule in India' (published in 1901), formulating the 'Drain of Wealth' theory to demonstrate how British rule systematically impoverished the Indian economy.
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