For Prelims: Census, Registrar General of India (RGI), Census Act, 1948, House Listing Block (HLB), Total House Listing Blocks (HLBs), Houses per HLB, Persons enumerated per census worker, Nodal Ministry
For Mains: Digital census, self-enumeration, geospatial mapping, data confidentiality, Census Act 1948
Source:
Dainik Bhaskar
5 facts for one-day exams
SSC, railway, police and teaching exams ask direct questions like these.
- Census 2027 is India's first fully digital census.
- India is divided into 24.25 lakh house listing blocks (HLBs).
- Each HLB has 150-200 houses and about 800 persons.
- The budget approved for Census 2027 is ₹11,718.24 crore.
- The census is conducted under the Census Act, 1948.
Why in the news?
India's Census 2027 will be the country's first fully digital census, with the entire nation mapped into 24.25 lakh house listing blocks (HLBs), each containing 150-200 houses. A single census worker will enumerate about 800 people per block. The second phase (population enumeration) begins 25 January 2027, with a budget of ₹11,718.24 crore approved.
Summary
- India's Census 2027 is the first digital census, using the Census Management and Monitoring System (CMMS) application for real-time monitoring and digital data collection.
- The country has been divided into 24.25 lakh House Listing Blocks (HLBs), each with 150-200 houses, mapped via special software for comprehensive geospatial coverage.
- The legal framework is the Census Act, 1948 and Census Rules, 1990; data confidentiality is protected under Section 15 of the Census Act, exempt from RTI and court evidence.
Highlights
Digital Mapping of 24.25 Lakh HLBs
India's entire geography has been digitally mapped into 24.25 lakh house listing blocks using special software, ensuring no area is missed or double-counted.
First Fully Digital Census
Census 2027 will be India's first digital census, with data collected via tablet/mobile apps and citizens given the option of self-enumeration.
Two-Phase Timeline
Phase 1 (house listing) is complete except Manipur; Phase 2 (population enumeration) runs 25 Jan – 28 Feb 2027 for most states, with earlier schedules for snowbound areas.
Background
India's census, conducted every 10 years under the Census Act, 1948, was originally scheduled for 2021 but postponed due to the COVID-19 pandemic. Census 2027 is the delayed decennial exercise, now the first to be fully digital. The Registrar General of India (RGI), under the Ministry of Home Affairs, oversees the entire process.
Key Analysis and Impact
The digital mapping into 24.25 lakh HLBs using the CMMS application marks a paradigm shift from paper-based enumeration. This geospatial framework eliminates coverage errors, ensures 100% geographic coverage, and enables real-time monitoring. The self-enumeration option empowers citizens, reduces workload on enumerators, and improves data accuracy. The ₹11,718.24 crore budget reflects the scale of digital infrastructure required.
Legal and Confidentiality Framework
The census operates under the Census Act, 1948 (Section 3 for orders) and Census Rules, 1990. Section 15 of the Act provides strong confidentiality: individual data cannot be shared under RTI, used as court evidence, or made public. This legal protection is critical for citizen trust and data privacy in a digital census.
Way Forward
The second phase (population enumeration) begins 25 January 2027 for most states, with earlier phases already completed in snowbound areas. The three-step process (self-enumeration, enumerator visit, 5-day revision round) aims to ensure no one is missed. The success of this digital census will set a template for future data collection exercises in India.
Background GK
Textbook concepts you need to understand this news
- Census
- A decennial (every 10 years) official count of a country's population, mandated by the Constitution of India under Article 246 (List I, Entry 69). It records demographic, social, and economic data of every person.
- Registrar General of India (RGI)
- The head of the Census Organisation of India, under the Ministry of Home Affairs, responsible for conducting the decennial census and maintaining the Sample Registration System (SRS).
- Census Act, 1948
- The primary legislation governing the conduct of census in India. It empowers the central government to conduct a census, prescribe the form of questions, and maintain confidentiality of individual data.
- House Listing Block (HLB)
- A small geographical unit created for census enumeration, typically containing 150-200 houses and about 800 people. It is the basic operational unit for a census enumerator.
Facts to remember
Tap a card to see the answer. Try to recall it first.
How exams will ask this
- Data: 24.25 lakh house listing blocks; 150-200 houses per HLB; 800 persons per enumerator; ₹11,718.24 crore budget
- Nodal Body: Registrar General of India (RGI) under Ministry of Home Affairs
- Legal Point: Census Act, 1948; Section 15 (confidentiality); Census Rules, 1990
Don't make this mistake!
Examiners may confuse 'House Listing Block' (HLB) with 'Enumeration Block' (EB) or swap the budget figure. They may also claim the 2021 census was conducted, when it was postponed, or mix up the two phases of the census.
Write these in mains answers
- Digital census, self-enumeration, geospatial mapping, data confidentiality, Census Act 1948
Stuck? Get it in one tap
A census is a government count of every person living in the country, done every 10 years. For Census 2027, India has been digitally mapped into 24.25 lakh small areas called house listing blocks, each with 150-200 houses. One census worker will count about 800 people in one block. Citizens can fill their details online themselves. The census uses a special app called CMMS for real-time monitoring, and the law keeps all personal information strictly confidential.
- Census 2027 is India's first fully digital census.
- India is divided into 24.25 lakh house listing blocks (HLBs).
- Each HLB has 150-200 houses and about 800 persons.
- The budget approved for Census 2027 is ₹11,718.24 crore.
- The census is conducted under the Census Act, 1948.
- Governance: Census and demographic data
- Polity: Constitutional bodies and statutory authorities
Related concepts: Census, Registrar General of India (RGI), Census Act, 1948, House Listing Block (HLB)
Practice questions
Pick an answer, then read the explanation.
- Q1Easy
Which ministry is the nodal ministry for conducting the Census of India?
Explanation: The Census of India is conducted by the Registrar General of India (RGI), which functions under the Ministry of Home Affairs. The Ministry of Statistics handles other data collection, while Law and Justice and Finance are not directly involved in census operations.
- Q2Hard
Consider the following statements regarding Census 2027:
- 1.Census 2027 will be India's first fully digital census, using the CMMS application for monitoring.
- 2.The census has been divided into 24.25 lakh enumeration blocks, each containing 150-200 households.
- 3.Individual census data is protected under Section 15 of the Census Act, 1948, and cannot be shared under the RTI Act.
Which of the statements given above is/are correct?
Explanation: Statement 1 is correct: Census 2027 is the first digital census using CMMS. Statement 2 is incorrect: the division is into 24.25 lakh 'house listing blocks' (HLBs), not 'enumeration blocks'. Statement 3 is correct: Section 15 of the Census Act, 1948 provides confidentiality, exempting data from RTI and court evidence. Hence option C is correct.
- Q3Medium
What is the approved budget for Census 2027?
Explanation: The central government approved a budget of ₹11,718.24 crore for Census 2027.
- Q4Medium
What is the primary purpose of dividing India into 24.25 lakh house listing blocks for Census 2027?
Explanation: The HLB division, combined with digital geospatial mapping, ensures complete geographic coverage and prevents areas from being missed or double-counted. Cost reduction is a side effect, not the primary purpose; enumerators are still needed, and the data is not for tax collection.
Frequently asked questions
1. How many house listing blocks has India been divided into for Census 2027?
India has been divided into 24.25 lakh house listing blocks (HLBs), each containing 150-200 houses.
2. When will the population enumeration phase of Census 2027 begin?
For most states, the population enumeration phase begins on 25 January 2027 and runs until 28 February 2027.
3. What is the budget approved for Census 2027?
The central government has approved a budget of ₹11,718.24 crore for Census 2027.
4. Which law governs the confidentiality of census data?
Section 15 of the Census Act, 1948 protects the confidentiality of individual census data, which cannot be shared under RTI or used as court evidence.
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- Original9 November 2026 · Read story
