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📝 Revision Notes
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Polity & Judiciary
Justice B.R. Gavai — 52nd Chief Justice of India
Justice Bhushan Ramkrishna Gavai will be sworn in as 52nd CJI on May 14, 2025, succeeding CJI Sanjiv Khanna (retiring May 13, 2025). He will be the second Dalit CJI after Justice KG Balakrishnan (2007–2010). Notable verdicts: upheld Article 370 abrogation (2023) and Electoral Bonds Scheme verdict (2024). Served until November 23, 2025.
Defence
DUSTLIK-VI — India–Uzbekistan Military Exercise
DUSTLIK-VI (6th edition) is the India–Uzbekistan joint military exercise held at Foreign Training Node, Aundh, Pune (April 16–28, 2025). ‘Dustlik’ means ‘friendship’ in Uzbek. Conducted annually since 2019, alternating between countries. Indian contingent: 60 personnel from the JAT Regiment and IAF Garud Special Force.
Aviation
ACI World 2024 Rankings — Delhi IGIA Rises to 9th
Atlanta Hartsfield-Jackson (ATL) was the world’s busiest airport (108+ million passengers). Delhi IGIA ranked 9th globally with 77 million passengers in 2024 (up 7.8% YoY). Progression: 17th (2019) → 13th (2021) → 10th (2023) → 9th (2024). Dubai DXB 2nd; Dallas DFW 3rd. Global traffic: ~9.5 billion passengers. ACI World HQ: Montreal; est. 1991.
Defence & Technology
L&T Waterjet Propulsion System — 45+ Knots
L&T PES successfully tested its 651 kW Waterjet Propulsion System on April 15, 2025, on the Indian Navy’s Fast Interceptor Craft (FIC) at 45+ knots (85 km/h). Developed at L&T’s AM Naik Heavy Engineering Complex, Surat under DRDO’s TDF scheme, with 70%+ indigenous content. Waterjet propulsion uses water acceleration for thrust, with built-in steering/braking and reduced noise signature.
Science & Technology
Betavolt BV100 — Nuclear Battery (Nickel-63)
China’s Betavolt BV100 nuclear battery uses Nickel-63 isotope, offering 10× energy density vs lithium-ion. Delivers 100 microwatts at 3V, operates for 50 years without charging, and withstands –60°C to +120°C. After its lifespan, Ni-63 decays into stable, non-radioactive copper. Applications: medical devices, aerospace, remote sensing.
Environment & Biodiversity
Six New Sericinae Beetle Species — ZSI Discovery
ZSI and Museum Koenig Bonn discovered 6 new Sericinae beetle species: Maladera onam (Kerala, Western Ghats); M. champhaiensis (Mizoram); Neoserica churachandpurensis (Manipur); M. barasingha (named after Indian swamp deer); M. lumlaensis and Serica subansiriensis (both Arunachal Pradesh). Published in Zootaxa. ZSI Director: Dhriti Banerjee; HQ: Kolkata; est. 1916.
Sports — Cricket
James Anderson — Knighthood & 704 Test Wickets
Sir James Anderson received a Knighthood in Rishi Sunak’s resignation honours list. He took 704 Test wickets in 188 Tests (21-year career) — most successful Test seamer and 3rd-highest wicket-taker in Test history (after Muralitharan 800 and Warne 708). Retired July 2024; 13th England cricketer knighted; total international wickets: 991 (188T + 194ODI + 19T20I).
Economy
UNCTAD Foresights 2025 — India & Global Growth
UNCTAD’s ‘Trade and Development Foresights 2025 – Under Pressure’ projects India’s CY2025 growth at 6.5% (down from 6.9% in CY2024), driven by public spending and monetary easing. India remains the fastest-growing major economy. Global growth projected to fall to 2.3% (from 2.8% in 2024). South Asia: 5.6%. UNCTAD SG: Rebeca Grynspan; HQ: Geneva; est. 1964.
Sports — Cricket
Sourav Ganguly — ICC Men’s Committee Chair
Sourav Ganguly was reappointed ICC Men’s Cricket Committee Chairperson, succeeding Anil Kumble (who completed the maximum 3 three-year terms). Committee members: VVS Laxman (India), Hamid Hassan (Afghanistan), Desmond Haynes (West Indies), Temba Bavuma (South Africa), Jonathan Trott (England). ICC Women’s Committee Chair: Catherine Campbell (New Zealand).
Health & Awareness
World Hemophilia Day — April 17
World Hemophilia Day (April 17) marks the birth anniversary of Frank Schnabel, founder of the World Federation of Hemophilia (WFH) (est. 1963; HQ: Québec, Canada; President: Cesar Garrido). 2025 theme: ‘Access for All: Women and Girls Bleed Too’. Hemophilia A = Factor VIII deficiency; Hemophilia B = Factor IX deficiency. Only 25% of 1.1 million affected worldwide receive adequate care.
🎴 Revision Flashcards
Click each card to flip and test your recall
Tap to Reveal
Who is the 52nd CJI, when is he sworn in, and who was the first Dalit CJI before him?
Justice B.R. Gavai; May 14, 2025; Justice KG Balakrishnan (2007–2010)
Succeeds CJI Sanjiv Khanna; part of Article 370 and Electoral Bonds benches; served until Nov 23, 2025
Tap to Reveal
What does ‘Dustlik’ mean, which country is India’s partner, and where was DUSTLIK-VI held?
Friendship; Uzbekistan; Foreign Training Node, Aundh, Pune
6th edition; April 16–28, 2025; 60 personnel from JAT Regiment + IAF Garud Special Force; since 2019
Tap to Reveal
Which airport topped ACI 2024 rankings, where did Delhi rank, and how many passengers did it handle?
Atlanta ATL (108M+); Delhi IGIA ranked 9th (77 million passengers)
Delhi: up from 10th (2023); Dubai DXB 2nd; Dallas DFW 3rd; global traffic ~9.5 billion
Tap to Reveal
What isotope does Betavolt’s BV100 use, how long does it last, and what does Ni-63 decay into?
Nickel-63; 50 years; decays into stable non-radioactive copper
10× energy density vs Li-ion; 100 microwatts at 3V; –60°C to +120°C operating range
Tap to Reveal
Where was Maladera onam discovered, and name two of the five Northeast Indian species found alongside it.
Western Ghats, Kerala; e.g., M. champhaiensis (Mizoram) + Neoserica churachandpurensis (Manipur)
ZSI + Museum Koenig Bonn; published in Zootaxa; ZSI Director: Dhriti Banerjee; est. 1916, Kolkata
Tap to Reveal
How many Test wickets did James Anderson take, and what is his rank in all-time Test wicket-takers?
704 wickets; 3rd all-time (after Muralitharan 800, Warne 708)
Knighthood from Rishi Sunak’s resignation honours; 13th England cricketer knighted; 991 total international wickets
Tap to Reveal
What is UNCTAD’s projected India CY2025 growth, and what is the projected global growth rate?
India: 6.5%; Global: 2.3%
Report: ‘Trade & Development Foresights 2025 – Under Pressure’; South Asia: 5.6%; India still fastest-growing major economy
Tap to Reveal
Who founded WFH, what is the 2025 World Hemophilia Day theme, and what is the difference between Hemophilia A and B?
Frank Schnabel; ‘Access for All: Women and Girls Bleed Too’; A = Factor VIII deficiency; B = Factor IX deficiency
WHD observed April 17; 31st WHD in 2025; only 25% of 1.1 million affected receive adequate care
Think & Discuss
Justice B.R. Gavai as CJI: What Does India’s Second Dalit Chief Justice Mean for Constitutional Justice?
Context from today’s quiz: Justice B.R. Gavai is set to become India’s 52nd Chief Justice — and only the second Dalit CJI after Justice KG Balakrishnan (2007–2010). His elevation comes at a time when questions of social representation in India’s higher judiciary are under increasing scrutiny, and when landmark judgments — on Article 370, Electoral Bonds, and potentially the Uniform Civil Code — shape the constitutional landscape.
🤔 Your Perspective Matters
India’s Supreme Court has historically been dominated by the upper castes — a reality that critics argue shapes judicial culture, case prioritisation, and even interpretive outcomes. The elevation of a Dalit judge to the position of CJI is symbolically significant, but the deeper question is whether the judiciary’s social composition can meaningfully influence its institutional character and its responsiveness to constitutional guarantees of equality.
Does the identity of a Chief Justice matter to the character of constitutional justice — or is the CJI’s role so structurally constrained that personal background has limited institutional impact?
Does the identity of a Chief Justice matter to the character of constitutional justice — or is the CJI’s role so structurally constrained that personal background has limited institutional impact?
- India’s higher judiciary has long lacked social diversity — with Dalits, tribals, women, and minorities significantly underrepresented on High Court and Supreme Court benches. Should diversity in judicial appointment become an explicit criterion alongside merit and seniority? Who should decide?
- Justice Gavai was part of benches that upheld the Article 370 abrogation and the Electoral Bonds scheme — decisions that remain contested on constitutional grounds. Does a judge’s social background create any obligation to adjudicate differently on issues affecting marginalised communities?
- The Chief Justice of India serves as the master of the roster — controlling which judge hears which case. Given the enormous discretionary power this entails, how important is the CJI’s personal philosophy and social outlook to the actual delivery of constitutional justice?
We’d love to hear your thoughts! Share your perspective in the comments.
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