Insearch Academy

🔆 Department of Atomic Energy (DAE): Year-End Review 2025

📍 Nuclear Power Milestone
✅ 56,681 MU electricity generated in FY 2024–25 (highest ever)
✅ ~49 million tonnes CO₂ emissions avoided

📍 Capacity Expansion
✅ RAPP-7 (700 MWe) achieved commercial operation (Apr 2025)
✅ Mahi Banswara Project (Rajasthan): 4×700 MWe PHWRs
✅ Implemented by ASHVINI (NPCIL–NTPC JV)
✅ Approval for 10 additional PHWR units beyond 22.5 GW target (2032)

📍 Health & Cancer Care
✅ 150-bed Homi Bhabha Cancer Hospital, Muzaffarpur inaugurated
✅ Tata Memorial Hospital recognised as IAEA “Rays of Hope” Anchor Centre
✅ 1.53 crore medical devices sterilised via e-beam technology (exports to 35+ countries)

📍 Rare Earths & Advanced Materials
✅ India’s first Certified Reference Material (CRM) for Rare Earth Elements
✅ 99.8% pure Boron-11 achieved (nuclear & semiconductor grade)
✅ High-purity Niobium developed for accelerators & space use

📍 Defence & Strategic Technologies
✅ CBRN protection systems deployed at strategic locations
✅ Key contributions to Agni, Akash-Prime, Astra & BrahMos systems

📍 Frontier Research & Innovation
✅ Indian Dark Matter Experiment (InDEx) launched at Jaduguda
✅ Indigenous fetal growth prediction model developed
✅ India hosted 18th International Olympiad on Astronomy & Astrophysics (2025)

📍 Agriculture & Societal Applications
✅ Radiation-developed crops released: Banana (TBM-9), Sorghum (RTS-43)
✅ 40 gamma irradiation facilities operational nationwide



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🔆 Ozone Depleting Substances (ODSs)
📍 Definition:
✅ Chlorine, bromine, CFCs, carbon tetrachloride, halons, etc.

📍 Potential Drivers of Ozone Hole over Antarctica:
1. Changes in Antarctic polar vortex
2. Changes in solar cycle
3. Increased atmospheric abundance of Chlorofluorocarbons (CFCs)

📍 Polar Vortex
✅ Stratospheric wind patterns with vast low-pressure areas and very cold air, more pronounced over the South Poles.
✅ Leads to formation of Polar Stratospheric Clouds (PSCs).

📍 Impact of Volcanic Eruptions on Ozone Layer:
✅ Triggers massive stratospheric water v***r plume.
✅ Injects large quantities of sulphur dioxide (facilitates chemical conversion of chlorine making it more reactive).
✅ Contributes atmospheric bromine and hydrogen chloride.
✅ Eruption particles provide surfaces for chemical reactions for ODSs.

📍 PSCs (Polar Stratospheric Clouds):
✅ Also known as nacreous clouds or mother of pearl.
✅ Formed below -78°C and trap outgoing longwave radiation.

📍 Location:
✅ Hunga Tonga-Hunga Ha’apai, a submarine volcano in the Tongan archipelago located in the Southern Pacific Ocean, erupted in January 2022.

📍 Ozone Layer Depletion Process (Infographic):
✅ 1st step: UV rays split chlorine atom from CFC molecule.
✅ 2nd step: Chlorine atom breaks up ozone molecule.
✅ 3rd step: The chlorine molecule left behind creates chlorine monoxide and oxygen (O2).

🔆 Karnataka Hate Speech Bill, 2025 – Concerns

✅ Broad definition of hate speech → risk of overreach
⚠️ Covers speech causing “enmity/ill-will” → vagueness & misuse
⚠️ Takedown powers to govt → weak procedural safeguards
⚠️ Burden of proof shifts to accused (due diligence clause)
⚠️ Harsher punishments (up to 10 yrs) vs existing BNS norms
❗ Chilling effect on free speech & artistic/academic expression
📌 Supreme Court: offences

🔆 Pottery Cultures in Ancient India

📍 Harappan Civilization (Indus Valley)
✅ Red ware pottery, mostly wheel-thrown (some handmade)
✅ Both polished & unpolished types existed; polished wares well-fired
✅ Polychrome pottery (more than two colours)
✅ Mostly utilitarian, flat-based vessels
✅ Geometric designs with flora & fauna motifs
✅ Perforated pottery → possibly for straining liquor
✅ Uniform mass production → centralized control, low individual creativity
✅ Luxury pottery at select sites → economic stratification

📍 Mature Harappan – Burial Pottery
✅ Burnished & painted pottery, specially made
✅ Indicates belief in life after death
✅ Grave goods varied → social stratification

📍 Late Harappan Phase
✅ Ochre Coloured Pottery (OCP) at chalcolithic sites (1900–1200 BCE)
✅ Black-grey burnished ware (slow wheel) → Swat Valley, Iranian links
✅ Black-on-red painted pottery → Harappan–Swat connections
✅ Grey ware & Painted Grey Ware (PGW) found together
✅ Simpler designs → cultural dilution

📍 Vedic Era – Painted Grey Ware (PGW)
✅ Fine grey pottery with black geometric designs
✅ Rig Vedic PGW: no iron or cereals → pre-iron phase
✅ Later Vedic PGW: iron present
✅ Period: 1200–600 BCE
✅ Regions: Punjab, Haryana, Upper Ganga Valley
✅ Settlements: villages & towns (no large cities)
✅ Mathura – largest PGW site

📍 Later Vedic → Northern Black Polished Ware (NBPW)
✅ Appears around 6th century BCE (Second Urbanisation)
✅ Glossy, lustrous luxury pottery
✅ Used by elite class → social stratification
✅ Continues into Mahajanapada period
✅ Sites: Ahichatra, Hastinapur (UP), Navdatoli (MP)
✅ Types:
✅ Monochrome (mostly jet black, fast-wheel, thin fabric)
✅ Bichrome (two colours, rarer)

📍 Megalithic Culture
✅ Period: 3rd century BCE – 1st century CE
✅ Megaliths = large stone burial monuments
✅ Extensive use of iron (especially South India)
✅ Wheel-thrown, well-baked durable pottery
✅ Mostly plain; occasional black paintings (e.g. Koldihawa)
✅ Found across India, dominant in South & Vindhyas
✅ Used as grave goods → belief in afterlife




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🔆 World Development Report 2025 — Standards for Development

📍 Why in News
✅ Released by World Bank
✅ Shows how global standards shape the world economy, often favouring rich nations & MNCs

📍 What are Standards?
✅ Shared rules ensuring consistency, compatibility & quality in products, systems & processes

📍 Why Standards Matter
✅ Economic growth: Boost trade, cut transaction costs, enable scaling & innovation
✅ National security: Improve competitiveness; manage tech, financial & environmental risks
✅ Social development: Better health & education outcomes
➡️ Example: Hospital childbirth checklists cut maternal deaths ~47% in India
✅ Governance: Transparent recruitment & procurement reduce corruption

📍 Key Challenges
⚠️ Trade weaponisation: Non-tariff barriers (labelling, pesticide norms) now affect 90% of global trade
⚠️ Representation gap: Developing countries occupy

🔆 Famous Indian Painters

📍 Raja Ravi Varma
✅ First great modern Indian painter
✅ National style blending Indian themes + European realism
✅ Mythology focus: Ramayana, Mahabharata
✅ Award: Gold Medal – Vienna Art Exhibition
✅ Famous work: Lady in the Moonlight

📍 Amrita Sher-Gil
✅ Iconic 20th-century woman painter
✅ Called India’s Frida Kahlo
✅ Blend of Western techniques + Mughal & Pahari styles
✅ Themes: Indian life, women, social realism

📍 M. F. Husain
✅ Leading figure of Modern Indian Art
✅ Style: Bold lines, vibrant colours, distorted forms
✅ Influenced by Cubism (Picasso, Gris, Léger)
✅ Works: Ramayana, Mahabharata, Mother Teresa

📍 Abanindranath Tagore
✅ Pioneer of Bengal School of Art
✅ Use of wash technique & calligraphy
✅ Iconic painting: Bharat Mata
✅ Art rooted in Indian nationalism

📍 Tyeb Mehta
✅ Member of Bombay Progressive Artists’ Group
✅ Known for Diagonal Series
✅ Themes: Violence, myth, existential crisis
✅ Works: Kali, Mahishasura

📍 Satish Gujral
✅ Painter, sculptor, muralist & architect
✅ Strong expressionist & socio-political themes
✅ Partition paintings highly acclaimed
✅ Awarded Padma Vibhushan (1999)

🔆 Tribes & Nomadic Groups in Medieval India

📍 Gond Tribe
✅ Lived in vast forested region called Gondwana
✅ Practised shifting cultivation
✅ Akbarnama mentions Garha Katanga with 70,000 villages
✅ Kingdoms developed centralised administration
✅ Emergence of large states transformed Gond society
✅ Some Gond chiefs sought Rajput status

📍 Ahom Tribe
✅ Migrated to Brahmaputra Valley from present-day Myanmar (13th century)
✅ Established state by suppressing Bhuiyans (local landlords)
✅ Annexed Chhutiyas (1523) and Koch-Hajo (1581)
✅ Early users of fi****ms (1530s)
✅ Defeated by Mughals under Mir Jumla (1662)
✅ State based on forced labour system (Paiks)
✅ Administration became highly centralised by 17th century
✅ Growing Brahmanical influence in religion
✅ Flourishing literature – Buranjis (Ahom → Assamese)

📍 Trader Nomads – Banjaras
✅ Most important trader nomads of medieval India
✅ Caravan called Tanda
✅ Used by Alauddin Khalji to transport grain
✅ Mentioned in Jahangir’s memoirs

📍 UPSC Prelims Focus
✅ Banjaras during the medieval period of Indian history were generally

a)agriculturists
b)warriors
c)weavers
d)traders

📌 UPSC CSE Prelims 2016 – Correct Answer: (d) Traders



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ഐക്യ കേരള പ്രതിജ്ഞ അറിയാമോ?

NIT കോഴിക്കോട് അദ്ധ്യാപകരാവാം 🥰

☘️Common Strategy Takeaways from Toppers
Across the top ranks, a few preparation pillars were consistently cited:

1. Limited Resources, Multiple Revisions: Read less, revise more. Toppers stuck to a few core books and notes, creating concise notes for rapid revision, especially in the crucial final months.
2. Mock Tests and Analysis: The focus wasn't just on taking mock tests, but on analyzing the mistakes—tracking weak areas, refining the elimination technique for Prelims, and improving answer structure for Mains.
3. Consistency Over Intensity: Most successful aspirants advocated for a sustainable study routine (e.g., 6-8 focused hours daily) rather than erratic, marathon sessions that lead to burnout.
4. Integration of Current Affairs: Current Affairs must be woven into the static subjects (Polity, Economy, Geography) to provide dynamic and analytical answers in the Mains exam.

The success stories of 2024 emphasize that the true differentiator in the Civil Services Exam is mental resilience, strategic revision, and the discipline of consistent effort.

How the new labour codes benefit textile industry.