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Quick Revision Table
| Concept | Key Fact | Exam Relevance |
|---|---|---|
| Nuclear family % | 54.4% households (Census 2011) | Family structure Q |
| Average household size | 5.3 (2001) → 4.9 (2011) — declining | Modernisation impact |
| Women's median marriage age | 22.1 years (NFHS-5, 2019–21) | Marriage reform data |
| Child marriage — India | 23.3% women married before 18 (NFHS-5) | PCMA context |
| Rajasthan child marriage | 25.4% — above national average | State-specific data |
| Sharda Act | 1929; H.B. Sarda (Ajmer); girls 14, boys 18 | PYQ 2021 |
| PCMA 2006 | Girls 18, boys 21; voidable marriages | Current child marriage law |
| Special Marriage Act | 1954 — civil marriage; no caste/religion | Marriage reform |
| DV Act | 2005 — protection from domestic violence | Women's rights |
| POCSO Act | 2012 — child sexual abuse; child-friendly courts | Child protection |
| Elderly 60+ | 138 million (2021); projected 346 mn by 2050 | Elderly data |
| Elder abuse | 20% of elderly face abuse (NITI Aayog 2020) | Elder problem |
| Maintenance Act | 2007 (amended 2019); ₹10,000/month; property return | Elder legal right |
| PwD population | 2.68 crore = 2.21% (Census 2011) | RPwD context |
| RPwD Act 2016 | 21 disabilities; 4% govt job reservation; UDID | PwD law |
| UNCRPD | 2006; India ratified 2007; basis of RPwD | International law |
| Cyber crime cases | 65,893 (NCRB 2022); +24.4%; Rajasthan: 7,233 | Cyber crime data |
| IT Act Sec 66A | Struck down by SC in Shreya Singhal case (2015) | Constitutional law |
| IT Act Sec 66C | Identity theft — 3 years + ₹1 lakh | Cyber crime law |
| Cyber crime helpline | 1930 (launched 2021) | Helpline number |
| CERT-In | India's cyber security nodal agency (2004, MeitY) | Institution |
| WhatsApp users | 487 million (2023) — largest globally | Social media data |
| #MeToo India | 2018 — sexual harassment disclosure movement | Social media positive |
| WhatsApp lynchings | 33 mob lynching deaths (2018) from fake news | Social media negative |
| IT Intermediary Rules | 2021 — grievance officer; traceability; 24-hr takedown | Social media regulation |
| DPDP Act | Digital Personal Data Protection Act, 2023 | Data protection |