GS Paper III | Science & Technology | Defence Indigenisation
What Happened
The Defence Research and Development Organisation (DRDO) completed final development trials of the Unmanned Aerial Vehicle Launched Precision Guided Missile (ULPGM)-V3 at its test range near Kurnool, Andhra Pradesh.
Key Details
Trials validated the missile in Air-to-Ground (anti-tank role) and Air-to-Air modes (targeting drones, helicopters, airborne threats)
Effective range: up to 10 km
Developed by Research Centre Imarat (RCI), Hyderabad as the nodal lab
Integrated with UAVs by Newspace Research and Technologies, Bengaluru
Production partners: Bharat Dynamics Limited (BDL) and Adani Defence Systems & Technologies Limited, both Hyderabad
What Happened
India is set to receive the fourth squadron of the S-400 Triumf air defence missile system from Russia by end of the week of 19 May 2026.
Key Details
S-400 is a long-range, surface-to-air missile system with multi-target engagement capability
India signed the deal worth ~USD 5.43 billion with Russia in 2018
The acquisition was under US CAATSA (Countering America's Adversaries Through Sanctions Act) scrutiny; India secured a waiver
Significance
Significantly bolsters India's layered air defence architecture
Reinforces India's strategic autonomy — ability to procure from Russia despite Western pressure
Five squadrons in total; fourth delivery marks near-completion of the contract
What Happened
The Home Ministry notified the Citizenship (Amendment) Rules, 2026, amending the Citizenship Rules, 2009, under the Citizenship Act, 1955.
Centralised electronic database of all OCI holders to be maintained
Minor Children
Indian passport holders (minors) cannot hold any foreign passport simultaneously
CAA Declaration
Applicants under CAA must submit an affidavit declaring passport status from Pakistan, Afghanistan & Bangladesh
Passport Surrender
Foreign passport must be surrendered within 15 days of citizenship approval
Background
Citizenship Act, 1955 governs acquisition, registration, renunciation and termination of citizenship
CAA, 2019 provides expedited citizenship to persecuted minorities from three specified countries
New rules promote paperless digital identity aligned with Digital India vision
UPSC Lens → Citizenship Act 1955 | CAA 2019 | OCI vs PIO | Fundamental Rights | Article 11
131st Constitutional Amendment Bill Defeated in Lok Sabha
GS Paper II | Parliament | Constitutional Amendments | Delimitation | Women's Reservation
What Happened
The Constitution (131st Amendment) Bill, 2026 was defeated in the Lok Sabha on 17 April 2026, having failed to secure the constitutionally required two-thirds majority.
Voting Breakdown
Members present: 528
Votes in favour: 298 | Votes against: 230
Required: Two-thirds of members present and voting (i.e., at least 352) — not achieved
What the Bill Proposed
Expansion of Lok Sabha seats based on 2011 Census data (removing the 1971 freeze)
Enabling one-third (33%) women's reservation in Lok Sabha and State Assemblies by decoupling it from a post-2026 Census
Amendments to Articles 81, 82 & 334A of the Constitution
Why It Failed — Key Debate
Southern States' Concern: States like Tamil Nadu, Kerala, Karnataka — which performed better on population control — stand to lose seats under population-proportional delimitation
North-South Divide: Faster-growing northern states would gain political leverage at the cost of slower-growing (but more developed) southern states
Two-thirds majority requirement under Article 368 not met
Sweden Joins India's Shukrayaan (Venus Orbiter Mission)
GS Paper III | Space | S&T | Science Diplomacy
What Happened
Sweden has formally joined India's planned Venus orbiter mission "Shukrayaan" as an international collaborator, further expanding ISRO's global partnerships.
Key Details
Shukrayaan is ISRO's interplanetary mission to Venus
Will carry a total of 19 scientific payloads
Mission objectives: Study Venusian atmosphere, surface geology, ionosphere and solar wind interaction
Sweden's collaboration adds scientific instruments and expertise to the mission
India's Space Diplomacy Context
Earlier collaborations include NASA, ESA, JAXA
Aligns with India's policy of "Space for Humanity" and joint scientific exploration
Maharashtra Signs MoUs for 25,400 MW Nuclear Energy Projects
GS Paper III | Energy | Nuclear Power | Climate Change
What Happened
Maharashtra signed Memorandums of Understanding (MoUs) with four companies on 19 May 2026 for nuclear energy generation projects with a combined capacity of 25,400 MW.
Significance
One of India's largest state-level commitments to nuclear power expansion
Supports India's target of achieving 500 GW non-fossil fuel capacity by 2030
Aligns with net-zero commitments under Paris Agreement (2015)
Reduces dependence on coal-based power, improving air quality
Nuclear energy = low-carbon, baseload power — complements intermittent solar/wind
Policy Context
Atomic Energy Act, 1962 governs nuclear projects in India
Nuclear Power Corporation of India Limited (NPCIL) is the primary public entity
Private sector participation in nuclear being explored under revised policies
UPSC Lens → Energy Mix | Climate NDCs | Paris Agreement | NPCIL | Maharashtra Industrial Policy
India–Vietnam MoU on AI and Quantum Technology
GS Paper II | Bilateral Relations | Science Diplomacy
What Happened
India and Vietnam exchanged an MoU on Artificial Intelligence and Quantum Technology on 19 May 2026 during a ministerial-level bilateral meeting in Hanoi.
Significance
Reflects deepening of India–Vietnam Comprehensive Strategic Partnership
Quantum technology and AI are dual-use — relevant for both civilian and defence applications
Aligns with India's National Quantum Mission (NQM) and Digital India vision
Vietnam is a key partner in India's Act East Policy and Indo-Pacific strategy
UPSC Lens → Act East Policy | India–ASEAN | National Quantum Mission | Technology Diplomacy | Indo-Pacific
Petrol & Diesel Prices Hiked by 90 Paise/Litre
GS Paper III | Economy | Inflation | Fuel Policy
What Happened
Petrol and diesel prices were hiked by 90 paise per litre across major Indian cities — the second consecutive increase in less than a week.
Key Points
Fuel prices in India are revised daily by Oil Marketing Companies (OMCs) — Indian Oil, BPCL, HPCL
Prices are tied to international crude oil prices and the INR/USD exchange rate
Excise duty and state VAT contribute significantly to retail fuel price
India holds approximately 60 days of petroleum supplies (strategic + commercial reserves)
Impact
Inflationary pressure on transportation and logistics costs
Affects CPI (Consumer Price Index) — particularly transport sub-index
SMEs and transport operators disproportionately affected
Supreme Court Directs Every District to Have ABC Centre for Stray Dogs
GS Paper II | Judiciary | Governance | Animal Welfare
What Happened
The Supreme Court dismissed all challenges related to stray dog management and directed every district in India to establish at least one fully functional Animal Birth Control (ABC) centre.
Key Directions
States/UTs to expand ABC infrastructure based on population density and local needs
NHAI and state governments to develop a coordinated mechanism for stray animals on highways/expressways
Mechanisms to include: animal transport vehicles, shelter facilities, coordination with welfare organisations
Courts may permit euthanasia in specific cases — strictly compliant with the Prevention of Cruelty to Animals Act
All High Courts directed to initiate suo motu continuing proceedings on implementation
Background
ABC framework introduced in 2001 under the Prevention of Cruelty to Animals Act
GS Paper II | Health Policy | Pharmaceutical Regulation
What Happened
Over 15 lakh pharmacies across India remained shut on 20 May 2026 as part of a nationwide chemist strike against regulatory and policy concerns raised by the pharmaceutical retail sector.
Issues Raised
Concerns over new licensing and regulatory norms
Opposition to proposed changes in drug pricing and distribution policy
Demands for review of pharmacy ownership and operations rules under the Drugs and Cosmetics Act
Impact
Disrupted supply of essential medicines across urban and rural areas
Highlights the tension between regulatory reform and service continuity
UPSC Lens → Drugs and Cosmetics Act | Pharmaceutical Regulation | Essential Medicines | Health Access | NPPA
QUICK BYTES
(One-liner facts for rapid revision)
#
Fact
1
DRDO's ULPGM-V3 trial conducted at Kurnool, Andhra Pradesh; range up to 10 km
2
India holds ~60 days of petroleum supplies including strategic reserves
3
131st Amendment Bill needed 2/3rd majority; got only 298/528 votes
4
Shukrayaan to carry 19 payloads; Sweden is latest international partner
5
Maharashtra's 25,400 MW nuclear MoU is one of India's largest state-level nuclear commitments
6
ABC framework for stray dogs has existed since 2001 but suffered chronic implementation failure
7
S-400 deal with Russia: ~USD 5.43 billion; total 5 squadrons; 4th delivery imminent
8
CAA applicants must surrender foreign passports within 15 days of citizenship approval
PRACTICE QUESTIONS
Where were the final development trials of DRDO's ULPGM-V3 missile conducted?
The Constitution (131st Amendment) Bill, 2026 was defeated in Lok Sabha. What minimum votes were required to pass it, given 528 members were present?
Which of the following correctly describes the Citizenship (Amendment) Rules, 2026?
Sweden joining the Shukrayaan mission relates to India's mission to which planet?
The Animal Birth Control (ABC) framework for stray dogs in India was introduced in which year?
India's S-400 air defence system was procured from which country, and what was the approximate deal value?
Maharashtra's MoUs for nuclear energy projects signed in May 2026 target a combined capacity of:
Which Articles of the Constitution were targeted by the 131st Amendment Bill 2026 for delimitation reforms?