rchives


(PRELIMS  Focus)


Herbicides

Category: AGRICULTURE

Context:  While insecticides are the largest segment, herbicides are growing fastest at 10%+ annually, driven by labour shortages for manual weeding.

India’s crop protection chemicals market (~₹24,500 crore) is dominated by insecticides (₹10,706 crore), fungicides (₹5,571 crore), and herbicides (₹8,209 crore). 

Key Points:

Learning Corner:

Insecticides vs fungicides, vs herbicides 

Aspect Insecticides Fungicides Herbicides
Target Insects and pests that damage crops by feeding on them or spreading disease. Fungi causing plant diseases such as rusts, blights, and mildew. Unwanted plants/weeds that compete with crops for nutrients, water, and sunlight.
Purpose Prevent or kill insects to protect crops. Prevent or control fungal diseases to maintain crop health. Kill or inhibit the growth of weeds.
Timing of Use Often applied during pest infestation or as preventive sprays in pest-prone seasons. Usually applied before or during disease occurrence, sometimes preventively in humid/wet conditions. Applied pre-emergent (before weeds sprout) or post-emergent (after weeds appear).
Market Size in India (2024–25 est.) ₹10,706 crore (largest share). ₹5,571 crore. ₹8,209 crore.
Annual Growth Rate 5.3%–5.5%. 5.5%–6%. 10%–11% (fastest-growing).
Current Trend Stable growth, market leader in share. Moderate growth, focused on disease management. Rapid growth due to labour shortage for manual weeding and shift to preventive use.

Source: THE INDIAN EXPRESS


Small Finance Bank

Category: ECONOMICS

Context : AU Small Finance Bank Gets RBI Nod to Become Universal Bank

The Reserve Bank of India has given in-principle approval for AU Small Finance Bank (AU SFB) to transition into a universal bank. This status will let AU Bank offer a wider range of financial services and products under one roof with fewer restrictions compared to a small finance bank.

Learning Corner:

Small Finance Bank (SFB) – Brief Note

Universal Bank:

Key Difference:

Source:  THE INDIAN EXPRESS


Tariff War

Category: INTERNATIONAL

Context: US President Donald Trump announced an extra 25% tariff on Indian imports as a penalty for buying Russian energy, adding to an existing 25% tariff. This makes Indian goods face a 50% tariff in the US

Summary

What Trump’s 50% tariff means for India:

Learning Corner:

World Trade Organization (WTO) 

The World Trade Organization (WTO) is the only global international organization dealing with the rules of trade between nations. It aims to ensure that international trade flows as smoothly, predictably, and freely as possible.

Historical Background

Objectives of WTO

Key functions

  1. Administering WTO Agreements – Includes:
    • GATT 1994 – Trade in goods.
    • GATS – Trade in services.
    • TRIPS – Intellectual property rights.
  2. Forum for Negotiations – Trade liberalization and new agreements.
  3. Dispute Settlement Mechanism (DSM) – Through the Dispute Settlement Body (DSB), ensures prompt resolution of conflicts.
  4. Monitoring and Review – Trade Policy Review Mechanism (TPRM) checks transparency of member states’ policies.
  5. Capacity Building – Technical assistance for developing and least-developed countries (LDCs).

Structure of WTO

Membership

WTO Agreements

  1. Goods – GATT 1994, Agreement on Agriculture (AoA), SPS (Sanitary and Phytosanitary Measures), TBT (Technical Barriers to Trade).
  2. Services – GATS.
  3. IPR – TRIPS.
  4. Others – Trade Facilitation Agreement (TFA), Plurilateral Agreements like Government Procurement.

Dispute Settlement Mechanism (DSM)

Role for Developing Countries

Most-Favoured-Nation (MFN) Concept

Source: THE INDIAN EXPRESS


Prophylaxis

Category: SCIENCE AND TECHNOLOGY

Context: Understanding prophylaxis: the ‘gold standard treatment’ in haemophilia care

Haemophilia is a rare inherited bleeding disorder, most commonly caused by a deficiency of Factor VIII in Haemophilia A, leading to excessive and spontaneous bleeding, particularly in joints and muscles. In India, only about 20% of the estimated cases are diagnosed due to lack of awareness, limited diagnostic facilities, and socioeconomic barriers, leaving patients vulnerable to disability and reduced life expectancy.

Traditionally, treatment focused on controlling bleeds after they occurred (on-demand therapy), but the modern approach—prophylaxis—involves regular replacement of clotting factors to prevent bleeds entirely. This strategy prevents joint damage, reduces disability, improves quality of life, and lessens the burden on healthcare systems.

Internationally, prophylaxis is the gold standard, with about 90% of haemophilia patients in developed countries receiving it, enabling near-normal life expectancy. In India, on-demand therapy still dominates, though some states have introduced prophylaxis for children in recent years.

Learning Corner:

Prophylaxis 

Meaning:
Prophylaxis refers to preventive treatment or actions taken to protect against a disease before it occurs. The term comes from the Greek prophylaktikos, meaning “to guard beforehand.”

Types:

  1. Primary Prophylaxis – Preventing the onset of disease in healthy individuals (e.g., vaccination against measles).
  2. Secondary Prophylaxis – Preventing recurrence or worsening of a disease in already exposed or at-risk individuals (e.g., giving antibiotics to prevent rheumatic fever in patients with prior strep throat).
  3. Post-exposure Prophylaxis (PEP) – Measures taken after potential exposure to prevent infection (e.g., rabies vaccination after a dog bite).

Examples:

Importance:

Source: THE HINDU


M. S. Swaminathan

Category: AGRICULTURE

Context 100th birth anniversary of M. S. Swaminathan

Early Life & Education

Key Contributions

  1. Green Revolution in India
  1. Institution Building
  1. Policy Interventions

Major Reports & Commissions

Awards & Honours

Source: PIB


(MAINS Focus)


Groundwater Pollution (GS paper III – Environment)

Introduction (Context)

India extracts 25% of the world’s groundwater, more than any other country, for agriculture, industry, and drinking water. Over 85% of rural drinking water and 65% of irrigation water come from below the surface. But overuse, pollution, and climate change are depleting reserves fast.

Groundwater status

National Groundwater Atlas offers a comprehensive assessment of groundwater availability and usage patterns across India.

The Atlas highlights regional disparities in groundwater levels and recharge potential.

Groundwater contamination

Health consequences

According to Indian Council of Medical Research (ICMR) and WHO:

Reasons

Key structural issues include:

Steps needed

India’s groundwater crisis calls for a bold, coordinated, and multi-dimensional strategy that integrates regulation, technology, health, and public participation. 

Key reforms include:

Conclusion

Groundwater contamination in India is a silent, slow, and invisible emergency with irreversible consequences. It is no longer just an environmental issue—it is a national public health crisis. With over 600 million lives dependent on this resource, urgent institutional, legal, and technological reforms are non-negotiable. As India envisions a $5 trillion economy, access to safe and clean water must become the foundation of its growth and social equity agenda.

Mains Practice Question

  1. “Groundwater contamination in India is a public health crisis masked as an environmental issue.” Analyse the causes, consequences, and policy failures in this context. (250 words, 15 marks)

Source: India’s toxic taps: how groundwater contamination is fuelling chronic illnesses – The Hindu


How India’s Nuclear Vision Supports a Sustainable Tomorrow (GS paper III – Science and Technology)

Introduction (Context)

India’s renewable energy capacity crossed the 200 GW milestone as of October 2024, representing a 13.5 per cent year-on-year increase. This includes 92 GW of solar power, 52 GW of Hydro power, 48 GW of wind energy and 11 GW of bio-energy. 

This achievement aligns with India’s broader climate and energy security goals. However, it is also increasingly evident that solar and wind energy alone may not suffice to meet India’s ever-increasing energy needs. These sources are inherently intermittent and seasonal and have spatial restrictions.

Hence, Nuclear energy has emerged as a critical complement to renewable energy in ensuring long-term energy security. (India has set an ambitious target to increase nuclear capacity to 22,800 MW by 2031-32 and 100 GW by 2047).

India’s Nuclear Journey

Why?

Nuclear-weapon States parties under the NPT are defined as those that manufactured and exploded a nuclear weapon or other nuclear explosive devices before January 1, 1967, effectively meaning the P-5 countries.

India has refused to sign it because:

  • Firstly, its signatories agreed not to transfer either nuclear weapons or nuclear weapons technology to any other state. 
  • Second, the non-nuclear states agreed that they would not receive, develop or otherwise acquire nuclear weapons.

All of the signatories agreed to submit to the safeguards against proliferation established by the International Atomic Energy Agency (IAEA). 

Parties to the treaty also agreed to help end the nuclear arms race and limit the spread of the technology.

Pokhran I – India’s First Nuclear Test

(NSG is a group of countries that controls the export of nuclear materials and technology. It made rules that countries like India (not signing NPT) cannot easily buy nuclear technology.)

Post Pokharan II

After Pokhran II, India declared its ‘No-First-Use’ policy along with Non-Use against Non-Nuclear Weapons States and Minimum Nuclear Deterrence. 

India also established the Nuclear Command Authority and the Strategic Forces Command, which institutionalised nuclear control in India. 

This helped India to build trust in its nuclear policy and diplomacy.

Terms:

  • No-First-Use’ Policy:
    India maintains a declared No-First-Use (NFU) nuclear doctrine, committing not to use nuclear weapons unless first attacked by an adversary using nuclear weapons.
  • Non-Nuclear Weapons States and Minimum Nuclear Deterrence:
    India, though a nuclear weapons state, upholds the principle of credible minimum deterrence, ensuring its arsenal is sufficient for deterrence without engaging in an arms race, while respecting the global non-proliferation framework.
  • Nuclear Command Authority (NCA):
    India’s Nuclear Command Authority is responsible for command, control, and operational decisions related to nuclear weapons. It comprises a Political Council (chaired by the Prime Minister) and an Executive Council (headed by the National Security Advisor).
  • Strategic Forces Command (SFC):
    The Strategic Forces Command is the operational arm of India’s nuclear command structure, responsible for managing and deploying the country’s nuclear arsenal and ensuring its readiness.

India-US Civil Nuclear Agreement

To fulfil the conditions for this waiver, India took some important steps. 

  • Missile Technology Control Regime (MTCR): An international partnership that aims to prevent the spread of missiles and related technology capable of carrying weapons of mass destruction.
  • Australia Group: A group of countries working to stop the spread of chemical and biological weapons by controlling the export of related materials and technologies.
  • Wassenaar Arrangement: A multilateral export control regime that promotes transparency and responsibility in transfers of conventional arms and dual-use goods and technologies.

Present nuclear capacity and future targets

Budget 2025-26

Challenges

Steps Needed to Strengthen India’s Nuclear Energy Future

Mains Practice Question

Q To support the vision of Viksit Bharat, nuclear energy has the potential to position India as a global leader in sustainable nuclear technology and steer it towards a cleaner, self-reliant future. Evaluate. (250 words, 15 marks)

Source: UPSC Science and Environment Current Affairs 2025: How India’s nuclear vision supports a sustainable tomorrow

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