NGOPVs

  • Keel Laying of 4th NGOPV (Yard 3040): Ceremony held at Garden Reach Shipbuilders & Engineers Ltd (GRSE), Kolkata, on April 24, 2025. Marks a major step in its construction.

  • Contract for 11 NGOPVs: Signed on March 30, 2023, for indigenous design and development. Goa Shipyard Ltd (GSL) is the Lead Shipyard (7 vessels), GRSE the Follow Shipyard (4 vessels).

  • NGOPV Capabilities: Approximately 3000 tonnes. Designed for coastal defence & surveillance, search & rescue, protection of offshore assets, and anti-piracy missions. Enhances maritime domain awareness and low-intensity maritime conflict capabilities.

  • “Aatmanirbhar Bharat” and “Make in India”: Project aligns with national initiatives

    promoting self-reliance in defence manufacturing.

  • Multi-Role Purpose: Intended for maritime surveillance, anti-piracy, pollution control, and EEZ patrol duties.
  • Augment Indian Naval Prowess: The eleven NGOPVs are being built in consonance with the nation’s vision of ‘ Aatmanirbhar Bharat ‘ and ‘ Make in India ‘ and are poised to augment the Indian Naval maritime prowess.

Monsoon & India’s Food Prices

  • Above-Normal Monsoon Forecast: IMD forecasts above-normal monsoon for 2025 (105% of LPA), potentially boosting agricultural output.

  • Regional Variations: Uneven distribution predicted; below-normal rainfall in some regions (J&K, Ladakh, Tamil Nadu, Bihar, Northeast), normal to above normal in core monsoon zone (MP, Rajasthan, Maharashtra, Odisha, Chhattisgarh, UP, WB)

  • Monsoon Impact on Food Prices: Good monsoons generally lower prices, but specific crop issues can still cause price hikes. Supply chain disruptions during heavy rains raise transportation costs.

  • Monsoon Failure & Imports: Deficient rainfall increases import dependence (pulses, edible oils), fueling inflation.

  • Other Inflation Factors:

    • Supply shocks (hoarding).
    • Global commodity prices (edible oils, pulses).
    • Monetary policy (higher interest rates).
    • Government policies (MSPs, export restrictions).
    • Supply chain weaknesses (storage, transport).
  • Steps to Control Inflation:

    • Improve supply chain management.
    • Promote Agri-Tech.
    • Encourage agricultural diversification.
    • Reform food subsidy systems.
    • Climate-smart practices.

MR

  • National Zero Measles-Rubella Elimination Campaign 2025-26 Launched: Aims for 100% immunization coverage with two M-R vaccine doses for all eligible children. This is crucial because measles and rubella are highly infectious and can cause serious complications and death, especially in vulnerable populations.

  • Goal: Eliminate Measles and Rubella in India by 2026. This is significant due to the diseases’ high infection rate and potential for severe lifelong complications.

  • Progress: 332 districts reported zero measles cases and 487 districts reported zero rubella

    cases (January-March 2025). Demonstrates advancement towards M-R elimination.

  • “ACT NOW” Policy: Focuses on eliminating M-R similar to the success achieved with Polio and Maternal and Neonatal Tetanus. The policy aims to accelerate efforts and ensure no child is left behind in the vaccination drive.

  • Current Vaccination Coverage: India’s MR vaccination coverage is at 93.7% (first dose) and 92.2% (second dose) (2024-25 HMIS data). High coverage is

    vital for achieving herd immunity and preventing outbreaks.

  • IEC Materials Released: Multi-language materials (posters, radio jingles, film) to raise awareness and promote community participation. These materials are intended to address vaccine hesitancy.

  • Call for Jan Bhagidari: Encourages inclusive participation of community leaders to spread awareness. Public support can significantly improve vaccination rates.

  • Universal Immunization Programme (UIP): Provides free M-R vaccines to children at 9-12 months and 16-24 months. UIP acts as a large program for vaccines across India for children and pregnant women.

  • Measles and Rubella Champion Award: India received international recognition for its efforts in preventing Measles and Rubella. The award recognizes India’s exceptional efforts.

  • Decline in Cases: India has seen a 73% decline in Measles cases and a 17% reduction in Rubella cases in 2024 compared to 2023. Demonstrates the effectiveness of current strategies.

Uncharted Territory

  • The “Spaghetti Bowl Phenomenon” is in the news due to ongoing debates about regional trade policies and the increasing number of Free Trade Agreements (FTAs).
  • The term, coined by Jagdish Bhagwati in 1995, describes the complex web of overlapping FTAs that can hinder rather than help trade.
  • Each FTA has unique Rules of Origin (ROO), creating challenges for producers trying to comply with different requirements across multiple FTAs. This complexity is the core issue.
  • The “spaghetti” analogy illustrates the messy and difficult-to-navigate nature of these trade rules.
  • The primary impact is that despite the rise in FTAs, regional trade volumes can stagnate because of the complexity and confusion caused by the “Spaghetti Bowl Phenomenon.”

Malaria Day 2025

  • World Malaria Day 2025 Theme: “Malaria Ends With Us: Reinvest, Reimagine, Reignite.” (Observed annually on April 25th)

  • Global Malaria Burden: Remains a major health challenge, affecting 263 million people and killing over 600,000 annually. Africa bears 94-95% of the burden.

  • India’s Progress: Significant decline in malaria cases and deaths

    between 2015 and 2023. India exited WHO’s High Burden to High Impact (HBHI) list, aiming for malaria-free status by 2030.

  • Treatment & Prevention: Advanced drugs like chloroquine and artemisinin. Tools like insecticide-treated nets (ITNs). Vaccines: RTS,S/AS01 (Mosquirix) and R21/Matrix-M approved. Chemoprophylaxis and Preventive Chemotherapy.

  • Global Initiatives: WHO Global Malaria Program and Global Technical Strategy for Malaria 2016–2030 (aims to reduce malaria cases and deaths by at least 90% by 2030, eliminate malaria in ≥35 countries by 2030 ).E-2025 initiative (WHO has identified 25 countries, with the potential to eradicate malaria by 2025). Genetically Modified Mosquitoes to Fight Against Malaria.

  • National Initiatives: National Framework for Malaria Elimination 2016-2030, National Vector-Borne Disease Control Programme, MERA-India, HBHI Initiative, National Malaria Control Programme (NMCP).

  • Historical Context: Malaria significantly impacted human migration, European colonization, and the slave trade. Understanding malaria transmission enabled colonial expansion in Africa.

GPS Spoofing

  • Event: Indian Air Force (IAF) aircraft experienced GPS spoofing while delivering aid to Myanmar under “Operation Brahma” after an earthquake in late March 2025.

  • GPS Spoofing Defined: A cyberattack that uses false GPS signals to mislead an aircraft’s navigation systems. It can overpower weak satellite signals, causing receivers to display incorrect location data.

  • Risk Factors: GPS spoofing can lead to hijacking, misdirection of aircraft, disruption of military operations, and potential friendly fire incidents.

  • IAF Response: The IAF acknowledged the potential for degraded GPS availability, as indicated by a “Notice to Airmen” (NOTAM) issued by Mandalay International Airport. They asserted that their crews are trained to handle such situations and that all missions were completed safely and as planned.

  • Extent: Reportedly, a majority of the six military transport

    aircraft deployed experienced GPS spoofing. Five landed in Yangon and Nay-Pyi-Daw on March 29-30, and one went to Mandalay on April 1.

  • Mitigation Measures: Potential countermeasures include using multi-constellation systems, advanced signal processing, and anti-spoofing devices.

INS Surat

  • Successful Missile Test: INS Surat successfully test-fired a medium-range surface-to-air missile (range ~70km) in the Arabian Sea, demonstrating precision engagement against a sea-skimming target.
  • Indigenous Design & Development: This achievement showcases India’s growing capabilities in indigenous warship design, development, and operations.
  • Commitment to Self-Reliance: The test underscores India’s commitment to ‘Aatmanirbhar Bharat’ (self-reliant India) in defense manufacturing.
  • Milestone Achievement: The Navy considers this a significant milestone, highlighting its dedication to safeguarding national maritime interests.
  • INS Surat Overview: INS Surat is the fourth and final ship of the Project 15B stealth guided missile destroyer class (Visakhapatnam class).
  • Advanced Capabilities: It’s equipped with state-of-the-art weapon-sensor packages, advanced network-centric capabilities.
  • Indigenous Content: 75% of the ship’s content is indigenous.
  • AI-Enabled Warship: INS Surat is the Indian Navy’s first Al (artificial intelligence)-enabled warship, enhancing operational efficiency.
  • Specifications: The ship has a displacement of 7,400 tonnes, is 164 metres long, and has a speed exceeding 30 knots (56 km/h).
  • Commissioned in January 2025: INS Surat was commissioned into the Indian Navy in January 2025.

Visa Norm Tightening

  • Significant Drop in US Visa Issuance: US F-1 student visas issued to Indian nationals sharply dropped by 30% in February 2025 compared to February 2024. This is disproportionately larger than the global average and other major countries like China.

  • Increased

    Visa Revocations: Indian nationals accounted for 50% of international students whose US visas were revoked in early 2025. The “Catch and Revoke” program is flagged as a factor, raising concerns about fairness.

  • Longer Visa Wait Times: Indian students face significantly longer visa wait times (58 days in Delhi) compared to East Asian capitals.

  • Australian Scrutiny: Australia has increased visa scrutiny for applicants from specific Indian states, leading to fears of profiling.

  • Impact on India’s Soft Power: The visa issues weaken India’s global presence and influence in key fields.

  • Risk to Demographic Dividend: Curbs hinder educational opportunities for India’s large youth population.

  • Potential Decline in Remittances: Stricter norms could reduce student migration and remittances to India.

  • Legal and Financial Hardship: Students facing revocation must undergo complex legal procedures to restore their SEVIS status

  • Human Capital Drain and Redirection: Shift towards hubs like Nordic countries and South Korea, impacting talent flow.

  • Domestic Higher Education Pressure: Strain on Indian institutions due to increased demand as international options narrow.

  • Mitigation Strategies:

    • Leverage diplomatic instruments
    • Overseas Education Protection Fund (OEPF)
    • Enhance domestic higher education
    • Digital student registry for tracking and support
    • Regulate education consultancies
  • Increased Visa Denials: In 2024, 41% of student visa applications were denied, compared to the 22.1% of all other types of visa applications that were denied.

Earth Day 2025

  • Date: April 22nd, annually
  • Mission: To broaden, educate, and activate environmental movements globally.
  • Theme for 2025: “Our Power, Our Planet” – Emphasizes renewable energy and

    calls for tripling clean energy capacity by 2030.

  • Origin: The first Earth Day in 1970 was inspired by a massive oil spill in California.

  • Impact: Led to significant environmental legislation in the US, including the creation of

    the Environmental Protection Agency (EPA).

  • Global Event: Became a global event in 1990, involving 200 million people across 141 countries.

  • Significance: Offers an opportunity to celebrate green initiatives and ongoing environmental protection efforts worldwide.

  • Activities: People globally unite, organize events, and raise awareness about environmental threats.

Mantis Shrimp Optics

  • Mantis Shrimp’s Striking Appendage as Natural Metamaterial: New research shows the mantis shrimp’s hammer-like limb (dactyl club) functions as a natural phononic metamaterial, challenging the notion that such materials are exclusive to lab creation.

  • Dual Mechanical Advantage: The club both withstands forceful impacts and controls energy propagation, providing protection from recoil.

  • Hierarchical Structure: The club’s design includes a hydroxyapatite surface for dispersing impact, spring-like tendons for shock absorption, and biopolymer fibers in a periodic pattern for reducing damage from repeated strikes.

  • Phononic Bandgap Discovery: The study revealed the internal arrangement of the microstructure serves as phononic bandgap which prevents energy waves of certain frequencies from

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passing through.

  • How the Mantis Shrimp Strikes:

    • Releases energy from spring-like structures.
    • Displaces water creating low-pressure zones.
    • Bubble implosions create a second blow from heat and shockwaves.
  • Impact on Material Science: The findings confirm that nature has evolved metamaterials, altering scientists’ understanding of biological material design.

  • Potential Applications: The research could inspire the development of synthetic sound-filtering materials for protective gear, methods for reducing blast-related injuries, and energy-harvesting applications based on trapping and converting mechanical energy.

  • Ecological and Scientific Significance: Mantis shrimp are important for controlling prey populations and nutrient cycling in reef ecosystems. Their unique eye structure and club mechanism are also inspiring advancements in optical sensor technology, armor engineering, and aerospace engineering.