Subject: Science & Tech – Aviation Weather Monitoring; Mission Mausam; SkyCast; Fog Forecasting; WiFEX; IMD; IITM.
Why in News?
About SkyCast System
Definition
Scientific Foundation
Key Technologies Integrated
| Technology | Function |
|---|---|
| Radar Wind Profiler | Core of the system; measures wind speed, wind direction, turbulence, vertical velocity, boundary-layer dynamics (up to ~3 km) |
| Ground-based Fog Aerosol Spectrometer (GFAS) | Monitors fog droplets, aerosols, and aerosol-fog interactions (critical for Delhi’s pollution-fog interaction) |
| CL61 Lidar-based Ceilometer | Monitors vertical structure of fog and visibility conditions in real time |
| SODAR | Acoustic radar for wind profiling (Sonic Detection and Ranging) |
| Microwave Radiometer | Measures temperature and humidity profiles |
Capabilities
Significance
For Aviation
Beyond Aviation
Key Terms for Prelims
Possible Prelims MCQs
Q1: The SkyCast System has been developed under which mission?
Q2: The scientific foundation of SkyCast comes from which experiment?
Q3: Which technology forms the core of the SkyCast System?
Q4: What is the primary purpose of the Ground-based Fog Aerosol Spectrometer (GFAS) in SkyCast?
Source/Reference:
https://www.pib.gov.in/PressReleasePage.aspx?PRID=2266638®=3&lang=1
Subject: Environment – Grassland Ecosystem; Renewable Energy – Solar vs Ecology; Ramsar Site; Pastoralist Livelihoods; Gujarat.
Why in News?
About Banni Grassland
Location
Protected Areas within Banni
Indigenous Communities
Flora
Fauna
Livestock
Key Terms for Prelims
Possible Prelims MCQs
Q1: Banni Grassland is located in which district of Gujarat?
Q2: Which Ramsar site is located within the Banni Grassland?
Q3: The pastoralist communities of Banni are collectively known as:
Q4: As per the MoEFCC office memorandum (August 2017), which of the following is NOT required to undergo Environmental Impact Assessment (EIA)?
Q5: Kiro Hill, which serves as a compass for Maldhari herders, is an:
Q6: Which invasive weed species dominates the vegetation of Banni Grassland?
Source/Reference:
Subject: Economy – Port Performance; Logistics; Maritime India Vision; PM Gati Shakti; Sagar Aankalan; JNPA.
Why in News?
About LPPI
Developed Under
Purpose
Key Performance Parameters
Weightage
Alignment with National Plans
First LPPI Rankings
| Category | Top Performer |
|---|---|
| Dry bulk cargo | Paradip Port Authority |
| Liquid bulk cargo | Sikka Port and Terminals |
| Container cargo (ports handling >0.5 million TEUs) | Mundra Port |
| Container cargo (major ports – second position) | JNPA |
Four Digital Initiatives Launched Alongside LPPI
| Module | Purpose |
|---|---|
| 24×7 grievance redressal system (e-Navik platform) | Allows seafarers to submit complaints through multiple channels (portal, toll-free helplines, email, messaging) |
| Ship registration module (e-Samudra) | Simplifies vessel registration procedures |
| Medical practitioner module | Streamlines registration and monitoring of doctors authorised to certify seafarers |
| Unified ship recycling credit note module | Supports ship recycling under the Ship Recycling Credit scheme |
Key Terms for Prelims
Possible Prelims MCQs
Q1: India’s first Logistics Port Performance Index (LPPI) was launched under which framework?
Q2: What is the full form of TEU, a unit used to measure container traffic?
Q3: The 24×7 grievance redressal system for seafarers was launched under which platform?
Q4: Which of the following is NOT a parameter used in the LPPI for assessing port performance?
Source/Reference:
Subject: Environment, Biodiversity Conservation, Species in News
Why in News?
White-Bellied Heron (Ardea insignis)
Threats
Prelims Significance
UPSC frequently asks questions on
White-Bellied Heron can be linked with previous UPSC themes on Great Indian Bustard, Jerdon’s Courser, Hangul, and species-specific conservation measures.
The White-Bellied Heron exemplifies the conservation challenge of balancing infrastructure development with biodiversity protection.
Its survival depends on preserving undisturbed Himalayan river ecosystems and scientifically informed environmental assessments.
Source/Reference:
Subject: Environment, Biodiversity, Protected Areas, Species in News
Why in News?
A rare albino Hog Deer was recently sighted in Kaziranga National Park, highlighting Assam’s rich biodiversity and renewed attention on the conservation status of this threatened grassland deer species.
Hog Deer (Axis porcinus)
Albino Hog Deer
Prelims Significance
UPSC frequently asks about
Hog Deer is important for linking species conservation with Brahmaputra floodplain ecology, similar to previous UPSC themes involving Hangul, Swamp Deer, Great Indian Bustard, and One-Horned Rhinoceros.
The Hog Deer symbolizes the ecological importance of India’s vanishing grasslands. The rare albino sighting underscores both the genetic diversity and conservation value of protected ecosystems like Kaziranga.
Source/Reference:
Subject: Polity, Internal Security, CAPFs, Border Management
Why in News?
The Union Government is considering expanding the operational mandate of the Border Security Force (BSF) while introducing a broader “territorial security” framework to strengthen integrated border management.
Border Security Force (BSF)
Recent Developments
Prelims Significance
UPSC frequently asks about
BSF can be linked with previous questions on ITBP, Assam Rifles, SSB, coastal security, India’s international borders, and internal security architecture.
The proposed expansion of BSF reflects India’s shift from conventional border guarding to technology-driven, multi-agency territorial security, highlighting the growing importance of integrated border management in national security.
Source/Reference:
GS Paper II – Governance (Social Justice; Urban Development) | GS Paper III – Economy (Financial Inclusion)
Street Vendors; Informal Economy; Micro-Credit; Digital Payments; Social Security
Introduction
PM SVANidhi, launched in June 2020, is a first-of-its-kind micro-credit scheme providing collateral-free, government-backed loans to street vendors to promote Swarozgar, Svavlamban, and Swabhimaan. Since inception, it has disbursed over 1.12 crore loans worth ₹17,800 crore, benefiting 75 lakh+ vendors. The scheme has enhanced digital adoption, financial inclusion, and social security coverage, and has been extended till March 2030.
Main Body
Key Features of PM SVANidhi
Working Capital Loans:
UPI-linked RuPay Credit Cards:
Digital Adoption Incentives:
SVANidhi se Samriddhi (SSS):
Capacity Building:
Scale and Reach
Overall Numbers (as of May 2026):
Inclusive Outreach:
Impact: Economic Empowerment
First-Time Access to Institutional Credit:
Income Growth:
Business Sustainability:
Impact: Household Welfare and Social Inclusion
Living Standards:
Social Inclusion:
Case Study Highlights
Babita Sharma (Ghaziabad):
Santhi R (Thiruvananthapuram):
Sewali Kalita (Guwahati):
Yograj Mali (Gandhinagar):
Beyond Credit: Changing Urban Landscape
What PM SVANidhi Has Achieved:
Changing Vision of Urban Governance:
Extension and Future Outlook
Extension until March 2030:
Continuing Objectives:
Challenges:
The Core Reality:
Conclusion
PM SVANidhi, launched in June 2020, has become a key support scheme for urban street vendors. Over 1.12 crore loans worth ₹17,800 crore have been disbursed to 75 lakh+ beneficiaries, with 95% accessing formal credit for the first time. The scheme offers collateral-free loans (₹15,000–₹50,000), digital cashback incentives, UPI-linked RuPay Credit Cards, welfare linkages, and capacity-building support. With strong gains in income, digital transactions, and inclusion of women and marginalized communities, the scheme has evolved from a relief measure to a pathway for self-reliance and has been extended till March 2030.
UPSC Mains Practice Question
https://www.pib.gov.in/PressReleasePage.aspx?PRID=2266920®=3&lang=1
GS Paper II – International Relations (Bilateral Relations)
India-US Strategic Partnership; Transactionalism; Trade; Energy Security; Diaspora
Introduction
American diplomat Dennis Kux described India and the US as “estranged democracies” during the Cold War. The 2008 India–US civil nuclear deal, led by George W. Bush and Manmohan Singh, transformed ties into “engaged democracies.” However, growing US emphasis on transactional interests, including trade and economic measures, has raised concerns in India about their impact on its economic growth, strategic autonomy, and global standing.
Main Body
The Three Phases of India-US Relations
Phase 1: Estranged Democracies (Cold War Era):
Phase 2: Engaged Democracies (2000-2016):
Phase 3: Restrained Democracies/Transactional (Trump era onwards):
The Transactional Foundation: Quid Pro Quos
The Nuclear Deal Negotiations:
Bush’s Long-Term View:
Trump’s Upended Perspective:
How US Actions Have Hurt Indian Interests
Trade Front:
Energy and Gulf Stability:
Relations with Pakistan:
The Core Reality:
The Diaspora: From Bridge to Limited Role
The Facilitating Role (1990s-2000s):
The Changed Reality:
First: Assimilation into MAGA:
Second: People-to-People Connect Means Little:
India’s Response: Multi-Alignment and Atmanirbharta
EAM S. Jaishankar’s Framework:
The Realist Recognition:
Nehru’s Foundational Principle (Constituent Assembly, December 1949):
Modi Government’s Atmanirbharta:
Conclusion
India–US relations have evolved from “estranged democracies” (Cold War) to “engaged democracies” (2000–2016) and now “restrained democracies”, marked by growing transactionalism. While the 2008 civil nuclear deal deepened ties, recent US trade, finance, and energy policies have heightened economic frictions. In response, India is prioritising multi-alignment and Atmanirbharta, placing national economic interests at the centre of its foreign and security policy.
UPSC Mains Practice Question