AI milestones timeline:
- November 30, 2022: ChatGPT (GPT-3.5 based) launched — fastest product to reach 100 million users (2 months; previously Instagram took 2.5 years)
- March 14, 2023: GPT-4 released (multimodal — text + images)
- May 2023: Google launched Bard (now Gemini)
- November 2023: GPT-4 Turbo released; OpenAI DevDay
- February 2024: Sora (OpenAI text-to-video model) previewed
- May 2024: GPT-4o ("omni") released — real-time voice, vision
- December 2024: Gemini 2.0 (Google) released
India's AI ecosystem:
- IndiaAI Mission: ₹10,371 crore approved (Cabinet March 2024) — 10,000+ GPU computing capacity, AI startups, AI application centers
- Bhashini: AI language translation platform (22 Indian languages)
- BharatGPT: Indian consortium building India-specific LLM
- IIT Madras, IISc: AI research centers
Regulatory landscape:
- EU AI Act (March 2024): First comprehensive AI law — risk-based framework
- G7 AI Code of Conduct: Voluntary code (October 2023)
- UN AI Safety: Global Digital Compact includes AI governance
*Why A is wrong:* Nov 2022 = ChatGPT launch (GPT-3.5), NOT GPT-4.
*Why C is wrong:* January 2024 = no major GPT model release.
*Why D is wrong:* June 2023 = no GPT-4 release date.

Finland and Sweden's NATO membership:
Historical context:
- Both Finland and Sweden: decades of military non-alignment (not joining NATO or Warsaw Pact)
- Finland: especially sensitive — shares 1,340 km border with Russia; "Finlandisation" (Cold War term for non-provocative neutrality)
Why they joined:
- Russia's full-scale invasion of Ukraine (February 24, 2022) fundamentally changed security calculations
- Fear that Russia's aggression could extend to non-NATO members
- Public opinion in both countries shifted dramatically toward NATO membership
- Finland joined: April 4, 2023
- Sweden joined: March 7, 2024 (delayed by Turkey and Hungary's requirements — Sweden's alleged Kurdish militant ties)
NATO impact:
- Finland's membership extended NATO's border with Russia by 1,340 km (more than doubled)
- Sweden's Saab Gripen jets, advanced submarines add significant military capability
- NATO now at 32 members
*Why A is wrong:* No economic incentives offered.
*Why C is wrong:* Neither Finland nor Sweden were founding NATO members; they maintained decades of non-alignment.
*Why D is wrong:* China's Arctic presence was not the primary driver.

Act East Policy (AEP):
- Announced: PM Modi at East Asia Summit, Naypyidaw, Myanmar, November 2014
- Replaced: "Look East Policy" (LEP, 1992 — PM Narasimha Rao)
Difference between Look East and Act East:
| Aspect | Look East (1992) | Act East (2014) |
|--------|-----------------|-----------------|
| Focus | ASEAN trade/economics | ASEAN + East Asia; broader |
| Character | Passive — "look" at opportunities | Active — "act" on connectivity |
| Scope | Economic | Economic + Strategic + Security |
| Reach | ASEAN | ASEAN + Japan + Australia + Pacific |
| Projects | Trade agreements | Physical connectivity (roads, ports) |
Act East Policy pillars:
- 3Cs: Culture, Commerce, Connectivity
- Key projects: India-Myanmar-Thailand Trilateral Highway; Kaladan Multi-Modal Transit Project; Sittwe Port (Myanmar, IND-funded)
- Linking Northeast India: ASEAN connectivity through Northeast states (Manipur, Mizoram, Nagaland as gateways)
- Japan: partnership on industrial corridors, bullet trains, Northeast development
Bihar's connection: Act East gateway — Bihar-Nepal-China route; Bihar as hinterland for Bangladesh/Nepal trade.
*Why A is wrong:* "Look North" is not a policy name; no such formal policy existed.
*Why C is wrong:* "Neighbourhood First" = India's separate policy for SAARC neighbours (Pakistan, Nepal, Bangladesh, Sri Lanka, Bhutan, Maldives, Afghanistan) — not ASEAN.
*Why D is wrong:* "Indo-Pacific Strategy" = broader framework; Act East specifically targets East/Southeast Asia.

International Solar Alliance (ISA):
- Launched: November 30, 2015 at COP21, Paris
- Founded jointly by: India (PM Modi) and France (President Hollande)
- Formally established: March 6, 2018 (Framework Agreement entered into force)
- Headquarters: Gurugram (Haryana), India — only international treaty-based organisation headquartered in India (after IARI merger)
- Members: 120+ countries (mainly countries between Tropics of Cancer and Capricorn — "sunshine countries")
- Secretary-General: Dr Ajay Mathur (India, 2022-)
ISA objectives:
- Deploy 1,000 GW solar power by 2030
- Mobilise $1 trillion solar finance by 2030
- Lower cost of solar through bulk procurement, technology transfer
- World Solar Bank: proposed global development bank for solar projects (ISA initiative)
ISA significance:
- India-France diplomatic achievement
- India's global leadership in solar energy
- Headquarters in India = diplomatic prestige
ISA and OSOWOG (One Sun One World One Grid): India's proposal at ISA to connect global electricity grids for 24/7 solar power across time zones.
*Why A is wrong:* BRICS 2016 — not ISA's launch event; China is not ISA's co-founder.
*Why C is wrong:* G20 2023 (New Delhi) — different event; USA co-founded nothing with ISA.
*Why D is wrong:* COP26 Glasgow 2021 = different COP; UK didn't co-found ISA.

African Union (AU):
- Founded: 2002 (successor to OAU — Organisation of African Unity, 1963-2002)
- Headquarters: Addis Ababa, Ethiopia
- Members: 55 African member states (all African nations)
G20 permanent membership (September 2023, New Delhi Summit):
- India's G20 presidency championed AU's permanent membership
- PM Modi's initiative: invited AU Chair to G20 even before formal vote
- AU became G20's 21st permanent member (replacing "G20" as a bloc, now truly representing all of Africa)
- Previous: South Africa was the only African G20 member
Why significant:
- Africa represents 1.4 billion people (largest continent by population after Asia)
- AU's inclusion brings voice to 55 African nations on global economic governance
- Climate finance, debt restructuring: Africa's concerns now at G20 table
AU Chairperson (2023-24): Azali Assoumani (Comoros) — represented AU at New Delhi G20.
AU headquarters: Addis Ababa — same city as UNECA (UN Economic Commission for Africa).
*Why A is wrong:* 33 African nations = ECOWAS + some — not the full AU.
*Why B is wrong:* 44 is not the AU member count.
*Why D is wrong:* 65 exceeds the number of African nations.

US-China Semiconductor (Chip) War:
- October 2022: Biden administration imposed sweeping export controls on advanced semiconductors and chip-making equipment to China
- January 2023: Netherlands and Japan joined the US controls (ASML — Dutch company making extreme ultraviolet lithography machines — banned from supplying to China)
What was restricted:
- Advanced semiconductors (chips below 16nm)
- AI chips (Nvidia A100, H100 GPUs)
- Chip manufacturing equipment (especially EUV machines — only ASML makes them)
- American persons from supporting China's chip industry
Why:
- Military applications of advanced chips (AI-guided weapons, nuclear simulations)
- China's Military-Civil Fusion strategy
- Protecting US technological leadership
Impact on China:
- Huawei: Cannot get advanced chips
- SMIC (China's TSMC equivalent): Capped at older technology
- China's response: $40+ billion state fund for domestic chip development
India's semiconductor opportunity:
- Tata Electronics + PSMC (Taiwan): ₹91,000 crore chip plant in Gujarat
- Micron Technology (USA): $825 million packaging plant in Sanand, Gujarat
- Indian Semiconductor Mission
*Why A is wrong:* Russia export controls = different context (Ukraine war); not the semiconductor-specific "Chip War."
*Why C, D:* North Korea and Iran = existing sanctions; not the context of the 2022 chip war.

India's Population (2023 UN estimates):
- India's population: ~140 crore (1.4 billion) — specifically ~142.86 crore (UNFPA State of World Population 2023)
- India surpassed China: April 2023 (UN projections confirm India as world's most populous)
- China's population: ~141.2 crore (and declining — first population decline since 1960s in 2022)
India's demographic facts:
- Population growth rate: ~0.8% per year (declining)
- TFR (Total Fertility Rate): 2.0 (replacement level = 2.1; India near replacement)
- Bihar: Highest TFR in India — ~3.0 (significantly above national average)
- UP + Maharashtra + Bihar + West Bengal: top populous states
- Median age: ~28 years (young country vs China ~38, Japan ~49)
Bihar's population: ~13 crore (130 million) — 3rd most populous state after UP and Maharashtra
Bihar's density: ~1,106 per sq km — highest among larger states
UN World Population Prospects 2022: India projected to peak at ~167 crore (1.67 billion) around 2064 before declining.
*Why A is wrong:* 120 crore was India's population around 2012 — already outdated.
*Why C is wrong:* 160 crore exceeds India's current count (that's a future projection ~2040s).
*Why D is wrong:* 180 crore = future peak is projected at 167 crore, not 180 crore.

UNCLOS maritime zones:
- Territorial Sea: 12 nautical miles — full sovereignty (like land territory)
- Contiguous Zone: 24 nautical miles — policing rights (customs, sanitation, immigration)
- Exclusive Economic Zone (EEZ): 200 nautical miles — sovereign rights over natural resources (fish, oil, gas, minerals)
- Continental Shelf: up to 350 nautical miles — rights over seabed resources (even beyond EEZ)
UNCLOS: opened 1982; entered into force 1994; India ratified 1995.
India's EEZ:
- India's EEZ area: ~2.02 million sq km (one of world's largest)
- Covers Bay of Bengal, Arabian Sea, Indian Ocean
- Rich in: fisheries, oil (Mumbai High), polymetallic nodules (Central Indian Ocean)
India-China-UNCLOS disputes:
- China claims "9-dash line" in South China Sea — dismissed by Permanent Court of Arbitration (2016 Philippines vs China ruling)
- India supports UNCLOS-based freedom of navigation; conducts freedom of navigation patrols
- Chinese ships in Indian EEZ: tension in Indian Ocean
India's Act East and Blue Economy: India's EEZ economic value; Sagarmala programme.
*Why A is wrong:* 12 NM = Territorial Sea (not EEZ).
*Why B is wrong:* 24 NM = Contiguous Zone (not EEZ).
*Why D is wrong:* 350 NM = maximum continental shelf limit (not EEZ).

OECD Global Minimum Corporate Tax (Pillar Two):
- Agreement: October 2021 (136 countries, OECD/G20 Inclusive Framework)
- Rate: 15% global minimum corporate tax
- Target: Large multinational enterprises (MNEs) with revenue above €750 million
Why it matters:
- Problem: "Base Erosion and Profit Shifting" (BEPS) — multinationals book profits in low-tax jurisdictions (Ireland 12.5%, Cayman Islands 0%)
- Solution: Pillar Two ensures these companies pay at least 15% globally; "top-up" tax in home country if subsidiary paid less
Two pillars:
- Pillar One: Redistribute taxing rights on large tech/consumer companies to market countries (where users are)
- Pillar Two: 15% minimum tax (more implemented)
India's implementation: India amended domestic tax laws to implement QDMTT (Qualified Domestic Minimum Top-up Tax) — ensures India captures the top-up tax rather than other countries
Impact on India: India has companies that invested in low-tax jurisdictions; also potential to tax MNEs more.
*Why A is wrong:* 5% = no global minimum at that rate.
*Why B is wrong:* 10% = some jurisdictions' rate; not the OECD minimum agreed.
*Why D is wrong:* 21% = Biden's proposed US minimum domestic rate; not the OECD Pillar Two rate.

Bihar Vidhan Sabha:
- Total seats: 243
- General seats: 162
- Scheduled Caste (SC) seats: 38
- Scheduled Tribe (ST) seats: 2
- Reserved (SC+ST): 40 out of 243
Bihar also has Vidhan Parishad (Legislative Council) — Bihar is one of the 6 states with bicameral legislature:
- Vidhan Parishad seats: 75 members
- MLA quota: 15 (elected by MLAs)
- Teachers quota: 6 (elected by teachers)
- Local bodies: 24 (elected by local body members)
- Governor's nominees: 12
- Graduates quota: 6
- Graduate constituency: 12 more
States with Vidhan Parishad: Andhra Pradesh, Telangana, Bihar, UP, Maharashtra, Karnataka — 6 states.
Bihar Lok Sabha seats: 40 (total Bihar's share of Parliament)
Rajya Sabha seats: 16 (Bihar's Rajya Sabha allocation)
*Why A is wrong:* 240 = not Bihar's assembly count.
*Why C is wrong:* 250 = also not Bihar's assembly count.
*Why D is wrong:* 288 = Maharashtra's Vidhan Sabha seats — not Bihar.

Bihar's Economy:
- GSDP: ~₹8-9 lakh crore (2023-24)
- Growth rate: ~10-11% (above national average but from low base)
Sectoral composition:
- Agriculture: ~25-30% of GSDP (contributes more than national average of ~15%)
- Services: ~50-55% of GSDP (government services, trade, transport)
- Industry/Manufacturing: ~15-20% (very low — below national average of 30%)
Agricultural products of Bihar:
- Maize (largest maize producer after Karnataka and Madhya Pradesh)
- Vegetables (cauliflower, brinjal, tomato — "vegetable bowl of North India")
- Wheat, rice (paddy)
- Litchi (Muzaffarpur — 75% of India's production)
- Makhana/Fox nut (Darbhanga, Madhubani — 90% of India + global)
- Sugarcane
- Jute (Kishanganj, Purnia, Katihar)
Bihar's industrial challenge:
- No major steel, chemical, automobile plants
- Hajipur EPIP (Export Promotion Industrial Park) — smaller industries
- Post-2000 bifurcation: lost Jharkhand's mining royalties
Bihar government's focus: Agro-processing industries, food parks, textile clusters.
*Why A is wrong:* Bihar has minimal automobile/steel manufacturing.
*Why C is wrong:* Post-Jharkhand bifurcation, Bihar lost most mineral resources (coal, iron ore to Jharkhand).
*Why D is wrong:* Bihar has no significant IT industry (unlike Bengaluru, Hyderabad, Pune).

Litchi production in Bihar:
- Bihar produces approximately ~75% of India's litchi
- National litchi production: ~750,000 metric tonnes annually
- Bihar's production: ~550,000 tonnes (Muzaffarpur district: largest single-district producer)
- Key districts: Muzaffarpur (main), Vaishali, Sitamarhi, Hajipur, Samastipur
Shahi Litchi (GI Tag):
- GI (Geographical Indication) tag: Shahi Litchi of Muzaffarpur received GI tag
- The distinctive "Shahi" variety — larger, sweeter, unique aroma
- Season: June-July (highly seasonal, 3-4 week window)
- Global connection: Bihar's litchi exported to Middle East, Europe, Southeast Asia
Health concern — Acute Encephalitis Syndrome (AES):
- 2019 Muzaffarpur AES outbreak: 151 children died
- Cause: Hypoglycin A toxin in unripe litchi (especially eaten on empty stomach by malnourished children)
- BPSC directly tested this in 2020 and 2021 exams
Litchi Board of India: National Board for Litchi Development (NBLD) coordinates — HQ Muzaffarpur.
*Why A is wrong:* Mango: UP, Andhra Pradesh, and Maharashtra lead production; Bihar is not 60%.
*Why C is wrong:* Banana: Maharashtra, Gujarat, Tamil Nadu — Bihar not 40%.
*Why D is wrong:* Guava: UP, Maharashtra, Bihar has some but not 50%.

Bhagalpuri Silk (Tussar Silk):
- Type: Tussar (Tussah) silk — produced from Antheraea mylitta silkworm (wild silkworm)
- Location: Bhagalpur district — "Silk City of India"
- GI Tag: Bhagalpuri Silk received a Geographical Indication (GI) tag
- Production hub: Nathna, Champa Nagari, Kutti locality in Bhagalpur; also Banka district
Tussar vs. Mulberry silk:
| Feature | Tussar (Bhagalpur) | Mulberry silk |
|---------|---------------------|----------------|
| Silkworm | Antheraea mylitta (wild) | Bombyx mori |
| Texture | Coarser, natural golden-brown | Smoother, white |
| Special quality | Absorbs natural dye beautifully | Bright artificial colours |
| Ecological | Wild forest-based | Farm-based |
Bhagalpur Silk trade:
- Major export product from Bihar
- Mekhla sarees, Bhagalpuri suits — popular across India
- Weaver community: Bunkar weavers (predominantly Muslim artisans)
Challenges: Competition from synthetic fabric, power loom competition, lack of credit for traditional weavers.
*Why A is wrong:* Chanderi = Madhya Pradesh textile; not from Bihar.
*Why C is wrong:* Khadi = cotton handspun (Gandhi connection); not silk; Bihar has khadi but Bhagalpur = silk.
*Why D is wrong:* Pashmina = Himalayan goat wool from Ladakh; not Bihar.

Nalanda University (ancient):
- Period: ~5th century CE (400s CE) to 1193 CE
- Founded: During Gupta Empire (credited to Kumara Gupta I, ~415-455 CE)
- Destroyed: 1193 CE by Bakhtiyar Khilji's army (burned the library — "Dharmaganj" — 3-story library burned for months)
- Location: Rajgir area, Nalanda district, Bihar
Significance:
- World's first residential university (dormitories for students and teachers)
- Students from China, Korea, Japan, Java, Sumatra, Sri Lanka, Turkey, Persia came to study
- Famous visitor: Xuanzang (Chinese pilgrim, 7th century CE — described Nalanda in detail; stayed 5 years)
- Subjects: Buddhist philosophy, logic, grammar, medicine, mathematics, astronomy
Notable scholars from/associated with Nalanda:
- Aryabhata (mathematician-astronomer — possibly associated)
- Dignaga (Buddhist logician)
- Dharmapala (Nalanda's head scholar)
- Shantarakshita (Buddhism to Tibet)
Modern Nalanda University:
- Revived: Nalanda University Act (2010, Parliament of India)
- New campus: Rajgir, Nalanda district
- International university — partnership with 17 countries
- PM Modi: inaugurated new campus building June 2024
*Why A is wrong:* 300-100 BCE = Mauryan period; Nalanda university post-dates this.
*Why C is wrong:* Kushan period (1st-3rd century CE) = Buddhism flourished but Nalanda university formally organized later.
*Why D is wrong:* Nalanda was destroyed in 1193 CE; Mughal period comes much later.

Saat Nischay (7 Resolves) — Phase 2 (2020-25):
Launched by CM Nitish Kumar for the 2020-2025 Vidhan Sabha term; builds on Phase 1 (2015-2020).
Seven pillars:
1. Yuva Shakti Bihar ki Pragati (Youth power for Bihar's progress): employment, entrepreneurship
2. Sashakt Mahila Saksham Bihar (Empowered women, capable Bihar): women's education, safety, self-reliance
3. Har Khet Tak Sinchai Ka Pani (Irrigation to every farm): Har Khet Sinchit scheme
4. Swachh Bihar, Swasth Bihar (Clean Bihar, Healthy Bihar): sanitation, health infrastructure
5. Vikasdoot Ki Baat Bihar ki Bat (Development messengers speak Bihar's story): governance reforms
6. Sarkar Ki Samvedanshilata (Government's sensitivity): responsive grievance redressal
7. Aatmanirbhar Buniyaad (Self-reliant foundation): infrastructure development
Phase 1 Achievements (2015-2020):
- Ghar Tak Pakki Gali-Naali: paved lanes to all houses
- Ghar Tak Bijli: electricity to all households
- Har Ghar Nal Ka Jal: tap water connections
- Yuva Awas: housing for youth
- Toilet for every household
*Why A is wrong:* Military/border = central government subject; state 7 Nischay covers development.
*Why C is wrong:* 7 Nischay is a comprehensive 7-pillar programme, not just education/health.
*Why D is wrong:* No privatisation focus in 7 Nischay.

Patna Metro Rail Project:
- Implementing agency: Patna Metro Rail Corporation (PMRC) — joint venture of Central and Bihar governments
- Total network: ~32.5 km (Phase 1)
Two corridors:
- Corridor 1 (East-West): Danapur to Khemnichak (~17.4 km, 14 stations)
- Corridor 2 (North-South): Patna Railway Station to Mithapur Bus Terminal (New ISBT) (~15 km, 12 stations)
Key features:
- Elevated + underground sections
- Capacity: 60,000 passengers/hour/direction (peak)
- Civil construction by agencies including Rail Vikas Nigam Limited (RVNL)
- Expected Phase 1 completion: 2025-26
Significance for Patna:
- Patna's population: ~2.5 million (city); ~7 million (district)
- Traffic congestion severe on Bailey Road, Boring Road, Ashok Rajpath
- Metro expected to reduce private vehicle load by 20-25%
- Connects Danapur (major military area) to eastern Patna
*Why A is wrong:* Patna Junction to Danapur is part of corridor 1 but not the full route; Danapur is the western terminus.
*Why B is wrong:* Patna Airport connection planned for later phases; not Phase 1.
*Why D is wrong:* Patna to Nalanda = ~80 km; not metro distance; highways connect them.

Champaran Satyagraha (1917):
- Location: Champaran district (now East and West Champaran), Bihar
- Leader: Mahatma Gandhi (first major political movement in India after returning from South Africa)
- Issue: Indigo farmers (cultivators) forced under the Tinkathia system:
- British planters compelled tenant farmers to grow indigo on 3/20 of their land (Tinkathia = 3 katha per bigha)
- Synthetic indigo (from Germany) replaced natural indigo → planters abandoned contracts but demanded compensation from farmers
Gandhi's approach:
- Arrived Champaran April 10, 1917
- Conducted fact-finding interviews with thousands of farmers (novel survey method)
- British authorities: ordered Gandhi to leave → Gandhi refused → mass mobilisation
- British Commissioner retreated: formed Champaran Agrarian Inquiry Committee
- Result: Tinkathia system abolished; farmers received compensation refunds
Why this was "first Satyagraha in India":
- Gandhi tested his South African Satyagraha technique in India for the first time
- Proved civil resistance works without violence
- Bihar provided Gandhi with crucial early support (Rajendra Prasad, Anugrah Narayan Sinha assisted Gandhi here)
2017: Centenary of Champaran Satyagraha — PM Modi held Cabinet meeting in Champaran.
*Why A is wrong:* Non-Cooperation Movement = 1920-22 (nationwide, not Champaran-specific).
*Why B is wrong:* Quit India Movement = August 1942 (from Bombay — "Do or Die").
*Why D is wrong:* Khilafat Movement = 1919-22 (Hindu-Muslim unity against British treatment of Ottoman Turkey).

Madhubani (Mithila) Painting:
- Origin: Mithila region of Bihar (Darbhanga, Madhubani, Sitamarhi districts)
- Traditional form: Women painted on mud walls during festivals (marriages, Chhath Puja, Deepawali) and on paper/cloth
Characteristics:
- Geometric patterns: Elaborate borders, concentric designs
- Mythological themes: Radha-Krishna, Sita-Ram, Mahabharata scenes, Hindu deities
- Natural dyes: Turmeric (yellow), indigo (blue), rice paste (white), sindoor (red), charcoal (black)
- No empty spaces: Every inch filled — called "horror vacui" style
- Double outline: Main figures drawn twice for emphasis
- Fish and birds: Common motifs (fertility symbols)
Three main styles:
1. Bharni style: Bold figures, bright colours — Brahmin women's style
2. Kachni/Godna style: Fine line work — Kayastha style
3. Tantrik style: More symbolic
Modern development:
- 1960s drought: Pupul Jayakar introduced Madhubani on paper for income generation for women
- GI tag: Madhubani painting received GI tag
- Padma awards: Several Madhubani artists received Padma Shri (Sita Devi, Jagdamba Devi, Ganga Devi)
- Global: Shown at international art fairs; UNESCO recognition for traditional knowledge
*Why A is wrong:* Madhubani = indigenous art; not European oil on canvas.
*Why C is wrong:* Warli = Maharashtra tribal art; Madhubani is distinct Mithila tradition.
*Why D is wrong:* Madhubani = nature and mythology; not Mughal portraiture.

Vikramshila Gangetic Dolphin Sanctuary:
- Location: Bhagalpur district, Bihar
- River: Ganga (40 km stretch from Sultanganj to Kahalgaon)
- Established: 1990
- Purpose: Protection of Gangetic River Dolphin (Platanista gangetica) — Bihar's state animal
Gangetic River Dolphin:
- IUCN status: Endangered
- Popularly called "Susu" (onomatopoeia from the sound it makes)
- Blind (eyes vestigial) — navigates by echolocation
- Found only in Ganga-Brahmaputra-Meghna river system
- National Aquatic Animal of India (since October 5, 2009)
Bhagalpur Dolphin count:
- One of the highest concentrations of Gangetic Dolphins in India (~250-300 dolphins in this stretch)
Threats:
- Boat traffic and propeller injuries
- Fishing nets (accidental entanglement)
- Pollution (industrial discharge at Bhagalpur, Kahalgaon thermal plant)
- River dredging
Conservation:
- Namami Gange Mission: dolphin conservation component
- "Dolphin Mitras": community volunteers monitoring dolphins
- Bhagalpur University: Dr Ravindra Kumar Sinha — leading dolphin researcher (Padma Shri 2010)
*Why A is wrong:* Muzaffarpur = litchi + Kala-Azar; no major dolphin sanctuary.
*Why C is wrong:* Darbhanga = Makhana, Madhubani art — not dolphin sanctuary.
*Why D is wrong:* Vaishali = historical Buddhist site; no dolphin sanctuary.

Mukhyamantri Udyami Yojana (MMUY):
- Launched by Bihar government (CM Nitish Kumar)
- Target: SC/ST youths and Extremely Backward Class (EBC) youths starting new enterprises
- Financial support: ₹10 lakh loan (50% subsidy + 50% interest-free loan repayable in 84 equal instalments)
- Implementing agency: Industries Department, Bihar; online portal
Variants:
- Mukhyamantri SC/ST Udyami Yojana: For Scheduled Caste and Scheduled Tribe entrepreneurs
- Mukhyamantri EBC Udyami Yojana: For Extremely Backward Class entrepreneurs
- Mukhyamantri Mahila Udyami Yojana: For women entrepreneurs (same ₹10 lakh structure)
- Mukhyamantri Yuva Udyami Yojana: For general category youth
Sectors supported: Food processing, manufacturing, service sector (beauty parlour, tailoring, electric vehicles)
Linkage to training: BSSC (Bihar State Staff Selection Commission) and ITIs provide skill training before loans disbursed.
*Why A is wrong:* Civil servant education = different scheme; MMUY targets entrepreneurs.
*Why C is wrong:* Agricultural machinery = PM KUSUM, SMAM (Sub Mission on Agricultural Mechanisation); not MMUY.
*Why D is wrong:* Abroad study = Bihar Student Credit Card scheme (different).

Bihar Student Credit Card (BSCC):
- Launched: CM Nitish Kumar (part of 7 Nischay-1, 2016)
- Loan amount: ₹4 lakh maximum (0% interest)
- Target: Students who have passed 12th (Class XII) for pursuing higher education
- Scope: Technical education (engineering, medicine, law, management, hotel management) and general degree courses
- Age: up to 25 years (or 30 for physically challenged)
- Repayment: after employment (or 1 year after course completion)
Key features:
- Interest-free loan: 0% interest rate during study + 1 year after
- Girl students, transgender students: Get additional subsidy or better terms
- Moratorium: No repayment during study period
- Banks: State Bank of India and other nationalised banks (Bihar government provides guarantee)
- Implemented by: BSCFDC (Bihar State Credit and Finance Corporation for Development)
Impact:
- ~3 lakh+ students benefited since launch
- Increased higher education GER (Gross Enrolment Ratio) in Bihar
- Reduces student dropout due to financial constraints
*Why A is wrong:* ₹2 lakh = too low; BSCC provides up to ₹4 lakh.
*Why C is wrong:* ₹5 lakh = not BSCC (that would be a separate central scheme).
*Why D is wrong:* ₹10 lakh = not BSCC; higher central schemes (PM Vidyalakshmi) may go higher.