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182 concrete research questions across 26 themes: population, everyday life, ownership, work, spending and society. Explore what is published and what needs further source work.
182 questions
Census counts, projections, settlements and boundaries, with the geographic unit and date stated before any comparison.
Published projected persons for 1 March 2026, separate from Census 2011 enumeration.
Two separate rankings of enumerated and projected persons, with a geographic crosswalk.
Population ranking for one selected geographic class at a time.
Persons and rural/urban shares within each historical district.
Growth over the same geographic footprint and period; boundary effects documented separately.
Definitions and cross-source units before estimating household size or housing stock.
Official census phases, notifications and publication status, rather than an invented release schedule.
Household possessions, individual experience and subscriptions are complementary but different measures.
Household internet access, personal recent use and their distinct denominators.
Ever-used-internet percentages by sex and rural/urban residence.
Household smartphone access and personal mobile ownership shown as separate measures.
Reported subscriptions with M2M treatment and a dated population denominator for density.
Historical household asset counts and percentages.
Scenario separating household access, individual use, age eligibility and actual channel reach.
Exact sex-specific ever-use indicators in released factsheets.
Separate registered stock, household possession, licences and journeys to work.
Vehicle-registration stock, covered categories and limits of interpreting owners or drivers.
Published category stock and derived share of the same dated registration total.
State/UT registered vehicle counts by category and reference date.
A comparison of vehicle stock with household possession percentages.
Mode-of-travel distribution in Census B-28.
Distance-to-work distribution and mode, within the B-28 reporting population.
Methods distinction between licence records, registered vehicles and people who actually drive.
Employment counts and rates depend on age, activity status, reference period and whether the denominator is people or the labour force.
LFPR, WPR and unemployment rate under Current Weekly Status.
Sex-specific LFPR, WPR and unemployment, with state estimates only where verified.
Employment-status composition using the survey’s published categories.
A definitions guide to employment, salaried work, self-employment and unpaid household helpers.
Industry and occupation distribution with the actual classification codes preserved.
Comparison of the reference periods and activity-classification rules.
Verified state LFPR for women aged 15+, with common quarter and status.
Surveyed establishments, registrations, workers and economic output are related but distinct ways to describe business activity.
Estimated establishments and workers in the covered non-agricultural sectors.
Establishment-type counts and employment under the ASUSE categories.
Percentage of covered establishments using the internet for business.
Dated administrative registration totals, with Udyam and UAP columns retained separately.
Methods comparison of survey establishment coverage and specific registration indicators.
Annual hired-worker emoluments versus GVA per worker for the report’s covered market establishments.
Coverage, observation unit, reference period and estimation method across source families.
Use actual food-frequency questions and keep age, sex, eggs and meat definitions visible.
Food-frequency responses, with eggs separate from fish/chicken/meat and women separate from men.
Daily, weekly, occasionally and never shares for each food category.
State percentages reporting specified frequencies, for each sex and food.
Habitual-frequency response categories and their difference from lifetime abstention.
Joint response to separate food questions under an explicit diet definition.
Like-for-like food-frequency shares by sex, age range and response category.
Difference between frequency, portion size and nutrient quantity.
The cost and composition of food consumption, distinct from income, nutrition and spending only among buyers.
Food MPCE and food share of total consumption expenditure.
Official food-category rupees per person and shares of total MPCE.
Comparison of category rupees with category share of all consumption.
Survey item-group definition and its MPCE contribution.
Food-category MPCE and share by fractile class.
Category mean among consuming households or persons versus the all-person mean.
Nominal change versus price-adjusted change on matched categories.
A careful bridge from a combined survey category to meaningful apparel and footwear questions.
Combined-category MPCE and share of total consumption.
Rural/urban comparison of combined-category means and shares.
Verified component item values and survey group definitions.
Category MPCE and share within state-sector-fractile groups.
Recall-period conversion, all-person denominator and purchase timing.
Direct garment-use measure versus combined expenditure category.
Scenario method separating population, category spend, reach and assumed sales share.
Distinguish households from homes and housing materials from legal title, space and affordability.
Household shares by construction, reported ownership and selected assets.
Construction-class percentages under the report’s material definitions.
Reported household ownership percentage, rural/urban/total.
Household-size and dwelling-room cross-tabulation; derived crowding rule stated explicitly.
Households by the source’s ownership-status categories.
Occupied-household distribution by the Census condition categories.
Rent consumption divided by all persons versus a tenant/household-only mean.
National and geographic composition, with all categories retained and Census 2011 boundaries visible.
Exact persons by eight religious-community categories; share of the relevant population.
State community count and community count divided by state population; rank each separately.
Each community’s share within rural and within urban population.
State community count divided by the same community’s national count.
Published male and female persons by religious community and place.
A crosswalk of historical geographic units; reaggregated counts only where compatible component data exists.
Community shares and percentage-point change on matched boundaries.
Language classifications and historical speaker distributions, without treating them as current fluency counts.
Published language groups, scheduled-language coverage and classified mother-tongue counts.
Counts and national population shares for 22 Scheduled language groups.
Language-group total versus component mother-tongue counts.
State language-group persons and each state’s share of the national group.
99 published Non-Scheduled language groups and their reported counts.
Published versus classified response categories and the role of the 10,000-person threshold.
Reported counts, shares and growth on compatible classifications.
Stocks, duration, reasons and movements require different denominators and do not all describe annual flows.
Persons classified as migrants at a point/period versus moves occurring during a defined interval.
Migration rate using last usual place of residence.
Two classifications: place of birth and last usual residence relative to present residence.
Reported reason distribution among migrants, by sex.
Origin/destination relationship under a defined last-residence classification.
Duration-of-residence distribution from the source’s categories.
Official survey purpose, proposed field period and publication status.
Visits, arrivals, nights and spending describe activity; none automatically counts unique people or residents.
Counting-unit guide covering domestic visits, foreign arrivals and international arrivals.
State/UT domestic visit totals with source estimates and revisions retained.
Foreign tourist arrivals compared with the separately defined international-arrival measure.
Monthly arrivals and shares of the same calendar-year total.
Definitions of domestic tourist visits and the availability of a separate pilgrimage measure.
Separate earnings, room/night or accommodation measures with their own units and coverage.
Methods guide to visits, length of stay, seasonality, resident population and peak occupancy.
Institutions report students and staff; population-based education and measured skills need their own sources and denominators.
Separate counts of reporting schools, enrolled students and teachers.
GER and NER using stage-appropriate enrolment and the relevant age-population denominator.
Reported/estimated enrolment and GER with the stated population projection denominator.
Enrolment by sex and discipline plus separately defined GER/GPI measures.
Educational-attainment counts by age and sex, with the table’s exact level categories.
Employment or unemployment rate within explicitly defined education and age groups.
Definitions guide distinguishing participation, credentials, literacy and assessed ability.
Births, deaths, fertility, longevity and ageing use different rates, windows and population bases.
Projected counts and shares for explicitly defined age bands; dependency ratio only with a stated formula.
Crude births per 1,000 population versus a synthetic period fertility measure in births per woman.
Period life expectancy in years under the observed age-specific mortality schedule.
Infant deaths per 1,000 live births under the source’s estimation method.
Maternal mortality ratio with the official cause/time definition and three-year window.
CRS registration counts versus SRS rates/estimates and their reference/registration periods.
Cause distribution among medically certified deaths, not all deaths in India.
Differentiate mother tongue, additional languages, reading ability and the audience a service needs to reach.
Counts of people reporting one or two additional languages, with published definitions.
Difference between mother-tongue classification and additional-language ability.
Local language distribution combined with separately measured literacy and channel access.
Spoken-language and reading measures treated as separate variables.
Person-level mother tongues versus household members and any joint language availability.
A grouped mother-tongue baseline plus independently measured comprehension assumptions.
Historical language distribution with a clear list of missing current preference and reach measures.
Combine food-frequency and expenditure lenses without treating them as the same statistic.
Four reported frequency shares for milk or curd.
Published rural and urban category MPCE and share.
Question and category definitions across NFHS frequency and HCES spending.
Separate four-category frequency distributions for fish and chicken/meat.
Combined category MPCE and share of total consumption.
Weighted item-level category values and shares by state/sector.
A methods comparison of age-specific frequency, buyers, quantities, prices and geographic coverage.
Describe frequency and household consumption while keeping clinical and nutrient conclusions separate.
Daily, weekly, occasional and never response shares for fruit.
Separate frequency distributions for leafy vegetables and pulses or beans.
Category MPCE and shares for the published vegetables, fruits and pulses groups.
State fruit-frequency percentages by sex.
Exact published child nutrition indicators with their own age ranges and definitions.
Methods guide separating association, different universes and causation.
Household percentage using iodized salt, rural/urban/total.
What consumption surveys can establish about staple baskets and the limits of using spending as food security.
Official combined Cereals and cereal substitutes category rupees and shares.
Per-person physical quantity by exact item and reporting period.
Verified millet item codes, quantities and values.
Difference between the official with-imputation and without-additional-imputation series.
Survey valuation rules for home produce, gifts, free collection and exchanges.
Difference between expenditure, own production, quantities and directly measured food insecurity.
A unit and coverage comparison of consumed quantities and agricultural output.
Read averages and distributions in place, with compatible categories and no invented household incomes.
Category MPCE and published shares across food and non-food groups.
State MPCE at current prices, rural and urban shown separately.
Means by survey fractile class and each class’s population definition.
Mean versus median, persons versus households, and distributional context.
Consumption valuation, reference period and non-cash components.
Population-weighted combination with compatible sectors and dates.
Geographic representativeness and the limits of downscaling a state mean.
Keep source classification, collection time, reliability and water quality as separate questions.
Population-based improved-source percentage, rural/urban/total.
Urban minus rural percentage-point difference for one matched indicator.
Distribution by detailed source category.
Collection time or source location under the exact survey categories.
Classification guide distinguishing source type from tested quality and safely managed services.
District indicator with identical numerator and universe across verified factsheets.
Comparison of harmonized source types with separate original indicators retained.
Facility availability, sharing and service management answer different questions about living conditions.
Improved sanitation facility not shared with another household.
Rural and urban household percentages with the same sanitation definition.
Separate source categories for unshared improved and shared improved facilities.
The exact no-facility or open-defecation category and its household/person denominator.
Observed or reported handwashing measure with the source’s inspection universe.
Methods distinction between household facility type and safely managed waste treatment.
Coverage comparison of the detailed report and newer national factsheet.
Fuel categories, spending and the difference between a connection and actual household use.
Household clean-fuel percentage using the report’s fuel grouping.
Urban versus rural household percentage and percentage-point difference.
The official clean-fuel grouping and detailed cooking-fuel categories.
State household shares by exact fuel category.
HCES fuel-and-light category MPCE and share.
Methods comparison of administrative connections, survey fuel use and fuel stacking.
Consumption expenditure versus affordability, prices and usage needs.
Basic electricity coverage and possessions, with reliability and potential demand treated as separate evidence.
Dated service percentages with each source’s household or person denominator.
Population-based electricity percentage for rural/urban/total.
Household possession shares, rural/urban/total.
Electric fan share and combined air-conditioner-or-cooler share.
Separate household possession percentages for televisions and computers.
A method distinguishing possession gaps from affordability, need and purchase intent.
The difference between an electricity indicator and hours, interruptions or voltage quality.
Account presence and household membership measures, with personal ownership and effective protection kept separate.
Household percentage with any usual member holding an account.
Matched household account percentage by sector.
Households with any usual female member owning land or a house, alone or jointly.
Households with at least one usual member covered by a health scheme.
Comparison of a household any-member measure with a women-respondent measure.
Historical count/share of households availing banking services.
Methods guide separating account presence, usage, balances, debt and consumption.
Turn evidence into clearly labeled research baselines without confusing residents, households, vehicles or buyers.
Separate household possession shares for cars and motorcycles/scooters.
A denominator-selection guide matched to the product and transaction unit.
Household counts and amenities for the exact historical geography.
Geographic crosswalk and compatible counts before any expenditure multiplication.
A methods guide to the limit of aggregate demographic inference.
Category definition, relevant population, current prices, buying incidence and reachable share.
A coverage record: metric, universe, geography, reference period, publication date and source status.
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