Comprehensive Study Guide & Exam Revision Overview: Census 2011 Highlights - AHC RO/ARO Study Guide
Welcome to the official Census 2011 Highlights - AHC RO/ARO Study Guide study resource on SJMaths, specially curated for Allahabad High Court RO/ARO Mains candidates and aspirants. This page features high-yielding study material, core concepts, essential formulas, shortcut strategies, and topic-wise revision notes structured to maximize your exam performance.
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1. Study Notes
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Chronological Evolution of Census 2011 Highlights
Click on any milestone card below to view standardizing achievements and timeline parameters.
Census 2011 Highlights
Comprehensive analysis of India's 15th National Census (2011), detailing national and UP-specific population size, growth, density, literacy, sex ratio, and SC/ST demographics.
1. National Demographic Profile
The 15th Census of India was conducted in 2011 under C. Chandramouli as Census Commissioner. It was divided into two phases: House Listing and Housing Census, followed by Population Enumeration.
Total Population: 121,08,54,977 (121.08 crores), consisting of 51.54% males and 48.46% females.
Decadal Growth Rate: 17.7% (compared to 21.5% in 1991-2001).
Urban-Rural Breakup: Rural population is 68.84% (83.37 crores) and Urban population is 31.16% (37.71 crores).
Least Populous State: Sikkim (6.1 lakh).
Least Populous UT: Lakshadweep (64,473).
2. National Density, Urbanisation & Literacy
National statistics reflect rapid urbanization and improvements in literacy, though gender and regional disparities remain.
Density (Persons/km²): India's average density is 382. States: Bihar (1106) and West Bengal (1028) are highest. Arunachal Pradesh (17) is lowest.
Literacy: Kerala (94.0%) and Mizoram (91.3%) lead. Bihar (61.8%) and Rajasthan (66.1%) have the lowest rates. Female literacy is lowest in Bihar (51.5%) and Rajasthan (52.1%).
Urbanisation: Goa is the most urbanized state by percentage (62.2%), whereas Himachal Pradesh is the most rural (90.0%). Maharashtra has the largest absolute urban population (5.08 crores).
3. Uttar Pradesh Census 2011 Special (Part 1 - General)
UP has the largest population among all states in India. It is a highly tested subject area in RO/ARO exams.
Total Population: 19,98,12,341 (19.98 crores), accounting for 16.51% of India's population. If UP were a country, it would be the 5th most populous country in the world.
Decadal Growth Rate: 20.23% (higher than the national average of 17.7%).
Population Density: 829 persons per sq km (ranked 9th among states).
Sex Ratio: 912 females per 1000 males (national average is 943).
Child Sex Ratio (0-6 years): 902 (national average is 919). This is a drop from 916 in 2001.
Literacy Rate: 67.68% (Male: 77.28%, Female: 57.18%). The gap between male and female literacy is exactly 20.1%.
4. Uttar Pradesh Census 2011 Special (Part 2 - District-wise Rankings)
RO/ARO exams frequently ask for the highest and lowest ranking districts in UP for various parameters:
Parameter
Highest District(s)
Lowest District(s)
Population
Prayagraj (59.5 lakh), Moradabad, Ghaziabad
Mahoba (8.7 lakh), Chitrakoot, Hamirpur
Density (persons/km²)
Ghaziabad (3971), Varanasi (2395), Lucknow (1816)
Lalitpur (242), Sonbhadra (270), Hamirpur (275)
Literacy Rate
Gautam Buddha Nagar (80.12%), Kanpur Nagar, Auraiya
Shravasti (46.74%), Bahraich (49.4%), Balrampur (49.5%)
Sex Ratio
Jaunpur (1024), Azamgarh (1019), Deoria (1017)
Gautam Buddha Nagar (851), Hamirpur/Baghpat (861)
Child Sex Ratio
Balrampur (950), Siddharthnagar (925)
Baghpat (841), Gautam Buddha Nagar (843)
5. SC & ST Demographics (National & UP)
Marginalized population statistics are critical for competitive exams:
National SC Population: 16.6% of India. Punjab has the highest percentage (31.9%). UP has the largest absolute SC population (4.13 crores).
National ST Population: 8.6% of India. Lakshadweep (94.8%) and Mizoram (94.4%) are highest. MP has the largest absolute ST population (1.53 crores).
UP SC Population: 20.69% of UP's total population (4.13 crores). Sitapur district has the highest absolute SC population, while Kaushambi has the highest percentage of SC (34.72%). Baghpat has the lowest.
UP ST Population: Only 0.57% of UP's total population (11.34 lakh). Sonbhadra district has the highest absolute ST population and highest percentage (20.67%). Baghpat has the lowest.
Evolution of Census in India
1872 — First Census : First non-synchronous population census conducted under the Viceroyalty of Lord Mayo.
1881 — First Synchronous Census : First synchronous, decadal census conducted under Lord Ripon. Since then, it is held every ten years.
1921 — The Great Divide : The only census year showing a negative population growth rate (-0.31%) due to influenza epidemic and famine.
1951 — First Post-Independence Census : Conducted under the Census Act of 1948. India's population stood at 36.1 crores.
2011 — 15th Census of India : Conducted with the motto 'Our Census, Our Future' under C. Chandramouli as Census Commissioner.
Key Questions & Answers
What is the overall literacy rate of India in Census 2011?
73.0% (Male literacy is 80.9% , and Female literacy is 64.6% ).
What is the literacy rate of Uttar Pradesh in Census 2011?
67.68% (approx 67.7%) . Male literacy is 77.28% and Female literacy is 57.18% . The gender gap is exactly 20.1%.
Which district of UP has the highest and lowest sex ratio?
Highest: Jaunpur (1024). Lowest: Gautam Buddha Nagar (851).
Which Indian states/UTs have NO Scheduled Tribe (ST) population?
Punjab, Haryana, Chandigarh, Delhi, and Puducherry have zero Scheduled Tribe population.
Memory Aids
Mnemonic 1: Top 3 Most Populous States : Recalls the order of states by highest population: 1. U — Uttar Pradesh (19.98 crores) 2. M — Maharashtra (11.23 crores) 3. B — Bihar (10.40 crores)
Mnemonic 2: Top 3 States with Highest Population Density : Recalls the order of states by density: • B — Bihar (1106 persons/sq km) • W — West Bengal (1028 persons/sq km) • K — Kerala (860 persons/sq km)
Mnemonic 3: UP District Rankings (Literacy, Sex Ratio, Density) : Recalls the highest-ranking districts in UP for each key parameter: • G — Gautam Buddha Nagar (Highest Literacy: 80.12%) • P — Prayagraj (Highest Population: 59.5 lakh) • G — Ghaziabad (Highest Density: 3971 persons/sq km)
Common Exam Traps
Trap 1: Confusing the highest density state with the highest density UT. The highest density state is Bihar (1106), but the highest density UT is Delhi (11,320 persons/sq km).
Trap 2: Believing Haryana has the lowest child sex ratio (0-6 years) among all units. Haryana is lowest (834) among states , but Daman & Diu has the lowest child sex ratio (610) among all UTs.
Trap 3: Confusing UP's general sex ratio with its child sex ratio. UP's general sex ratio is 912 , whereas its child sex ratio (0-6 years) is 902 .
Trap 4: Assuming Sonbhadra is only highest in ST population. Sonbhadra has both the highest absolute number AND the highest percentage of Scheduled Tribes (ST) in Uttar Pradesh.
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