Daily Current Affairs 31 July 2026 – IAS Current Affairs

Current Affairs 31 July 2026 focuses on the Prelims-Mains perspective. Major events are :

Ex-Post Facto Environmental Clearance: Supreme Court Judgment

Source: Indian Express
GS III: Environment, Environmental Impact Assessment (EIA), Conservation

Why in the News?

On July 29, 2026, a Supreme Court Bench led by Chief Justice Surya Kant struck down the Centre’s 2021 Office Memorandum (OM) that permitted retrospective (ex-post facto) Environmental Clearances (ECs) for projects that began without prior approval.

News in Brief

• The Court distinguished between an administrative office memorandum and a statutory notification issued under the Environment (Protection) Act, 1986.
• The Court ruled that prior environmental clearance is the rule, and such clearances cannot be granted through an executive office memorandum.
• It introduced a “public interest test”, allowing only narrowly tailored statutory schemes in exceptional circumstances instead of blanket regularisation.

Key Highlights of the Supreme Court Judgment

• Invalid Executive Action– The Court declared the Ministry of Environment’s 2021 Office Memorandum (OM) (Vanashakti v. Union of India) illegal, stating that a mere administrative instruction cannot override the mandatory prior clearance rules of the Environmental Impact Assessment (EIA) Notification of 2006.
• Limited Scope for Ex-Post Facto Clearance – The Court held that retrospective environmental clearance cannot be granted through an executive OM.
  • However, in exceptional cases involving supervening public interest, the government may introduce a limited statutory mechanism through a valid notification.
• Violation of Constitutional and Environmental Principles–  Perpetual regularisation without explicit framework parameters violates the Precautionary Principle, sustainable development, and the constitutional guarantee of a clean environment under Articles 14 and 21.
• Prospective Operation- To prevent massive disruption to ongoing infrastructure and public investments, the court struck down the memorandum prospectively, meaning existing clearances granted under it stay valid.

Permissible Exemptions and Statutory Rules

• Statutory Notification Route- The Centre retains the legal power to provide structured amnesty schemes, but only through formal, narrowly tailored statutory notifications under Section 3 of the Environment (Protection) Act, 1986 rather than back-door executive memos.
• Public Interest Test- Any future exception for retrospective regularization must be time-bound, transparent, reasoned, and justified strictly by compelling public interest.

Significance of the Judgment and Associated Challenges

• Reinforces the precautionary principle in environmental governance.
• Prevents routine regularisation of environmental violations.
• Strengthens the rule of law and regulatory accountability.
• Balances developmental needs with environmental protection through a narrowly defined public interest exception.

Challenges

• Defining the scope of “public interest” without misuse.
• Ensuring uniform implementation across States.
• Balancing economic development with environmental safeguards.
• Preventing delays in environmental approval processes.

Evolution of Environmental Jurisprudence

• Common Cause v. Union of India (2017)- Prior EC is mandatory; retrospective approvals are generally impermissible.
• Alembic Pharmaceuticals Ltd. v. Rohit Prajapati (2020)- Ex-post facto ECs are contrary to the precautionary principle and sustainable development.
• Electrosteel Steels Ltd. v. Union of India (2021)- Recognised limited exceptional situations where post-facto EC may protect larger public interests.
• Vanashakti v. Union of India (2025)- Struck down the 2017 notification and 2021 OM permitting retrospective ECs.
• 2026 Judgment- Balances environmental protection with limited statutory flexibility through the public interest test.

Conclusion

The verdict marks a significant step towards a more transparent and accountable environmental regulatory framework. Its long-term success will depend on effective implementation, stronger compliance mechanisms, and responsible decision-making that safeguards both ecological integrity and developmental priorities.

Key Takeaways

UPSC Prelims and Mains Practice Question

With reference to Ex-Post Facto Environmental Clearance, consider the following statements:

1. It grants environmental approval after a project has commenced.
2. The Supreme Court has held that such clearances can always be granted through an Office Memorandum.
3. The Court recognised that a limited statutory amnesty may be permissible in exceptional public interest cases.

Which of the statements given above is/are correct?

A. 1 and 3 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3

Answer: A

Mains Practice Question

Q “Environmental governance requires balancing developmental needs with ecological sustainability.” In the light of the Supreme Court’s judgment on retrospective environmental clearances, discuss the significance of prior Environmental Clearance and the role of the precautionary principle in India’s environmental jurisprudence. (250 words)

Vizhinjam International Transhipment Port- Blue Economy, Sagarmala & Maritime Security

Source: Indian Express
GS III: Infrastructure- Ports

Why in the News?

Vizhinjam International Transshipment Seaport has been notified as a Customs Port, enabling direct export-import (EXIM) cargo operations in addition to transshipment services.

News in Brief

• The move is expected to strengthen India’s maritime trade and reduce dependence on foreign transshipment hubs.
• Vizhinjam, which functioned only as a transshipment port since 2024, can now handle India’s export and import cargo directly.
• It supports the goals of Sagarmala, port-led industrialisation, and India’s ambition to emerge as a global maritime logistics hub.

Vizhinjam International Transshipment Port

• The Vizhinjam International Seaport in Kerala is India’s first dedicated deep-water container trans-shipment port.
• Located near Thiruvananthapuram, it sits just 10 nautical miles from major international East–West shipping lanes.
• Developed under a Public-Private Partnership (PPP) model with Adani Ports.

Key Features

• Natural Deep Draft- Depth of 18–20 meters available just one kilometer from the shore, allowing ultra-large container vessels (ULCVs) to dock without costly maintenance dredging.
• Minimal Littoral Drift- Low coastal sand movement reduces siltation and upkeep expenses.
• Advanced Technology- India’s first semi-automated port, featuring an AI-driven control room and an indigenous Vessel Traffic Management System (VTMS).
• Strategic Proximity- Located just 10 nautical miles from the East–West international shipping route, connecting the Suez Canal (Europe–Mediterranean) with the Strait of Malacca and East Asia, making it ideal for global transshipment.

Alignment with National Initiatives

Blue Economy Growth

• Transshipment Independence- Cuts reliance on foreign hubs (like Colombo), saving foreign currency and retaining shipping revenue in India.
• Cost and Time Savings- Lowers logistics costs for local exporters and slashes transit days.
• Port-Led Prosperity- Stimulates regional logistics, industrial parks, and seafood processing zones across Kerala.

Sagarmala Integration

• Infrastructure Synergy- Directly aligned with Sagarmala’s port-led development strategy and PM Gati Shakti multi-modal connectivity.
• Network Multiplier-  Fills a vital infrastructure gap as a mega-container terminal linking domestic coastal shipping paths.
• Efficiency Boost- Enhances national cargo handling speed and lowers overall turnaround times.

Strategic Significance & Economic Importance

Curbing Forex Loss

• Historically, around 75% of India’s transhipment cargo was handled at foreign hubs like Colombo, Singapore, and Jebel Ali, costing hundreds of millions in foreign exchange. Vizhinjam captures this traffic back to domestic shores.

Lower Logistics Costs

• Reduces logistics and cargo transport overheads significantly for Indian EXIM (Export-Import) operations.

Maritime Security

• Strategic Location- Positions India as a primary security provider and net safety anchor in the Indian Ocean Region under the SAGAR doctrine.
• Coast Guard Presence- Features dedicated infrastructure, such as local Coast Guard jetties, enabling rapid regional response and surveillance.
• Coordinated Defense- Streamlines communication between state maritime boards, coastal police, and the military.

Conclusion

Vizhinjam Port marks a significant step towards India’s aspiration to become a global maritime hub by strengthening transshipment capacity, promoting the Blue Economy, and enhancing strategic presence in the Indian Ocean Region.

Key Takeaways

UPSC Prelims and Mains Practice Question

With reference to Vizhinjam International Transshipment Port, consider the following statements:

1. It is India’s first deep-water container transshipment port.
2. It is located in Kerala.
3. It was initially developed only as a transshipment hub before being notified as a customs port.

Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

Answer: (d)

Mains Practice Question

Q. Discuss the role of modern port infrastructure in enhancing India’s trade competitiveness, logistics efficiency, and maritime security. Illustrate your answer with suitable examples. (250  Words)

Temple Pillars Of Madurai: History And Architecture

Source: The Hindu
GS I: Indian Heritage and Culture

Why in the News?

A recent article highlighted the remarkable stone pillars of Madurai’s temple architecture, showcasing the engineering, artistic, and acoustic excellence of South India’s medieval temple builders.

News in Brief

• Madurai’s temple pillars are renowned for their intricate sculptures, monolithic construction, and exceptional craftsmanship.
• Several pillars, especially in the Meenakshi Amman Temple, produce distinct musical notes when gently tapped, reflecting advanced knowledge of acoustics.
• These architectural marvels highlight the cultural, scientific, and artistic achievements of the Pandya and Nayak periods.

Thousand Pillar Hall (Aayiram Kaal Mandapam)

• Location– Situated inside the northern segment of the Meenakshi Amman Temple.
• Count & Build- Features 985 richly carved granite pillars built in 1569 by Ariyanatha Mudaliar.
• Sculptures– Carved with images of Yalis (mythological beast with an elephant head and lion body) and fine Dravidian art details.
• Acoustics– Designed with precise engineering that produces musical notes when struck and creates near-zero echo.

Pathu Thoon (Ten Pillars)

• Location– Standing in a narrow commercial residential lane just north of the Thirumalai Nayakkar Palace.
• History– Ten massive 12-meter-tall stone pillars standing over 300 years, marking the last remnants of an old Nayak palace.
• Surroundings– The site is now enclosed by textile shops and residential buildings and is protected by the State Department of Archaeology.

Key Features

• Monolithic Construction– Many pillars are carved from a single block of granite.
• Musical Pillars- Produce different musical tones due to precise stone carving and internal resonance.
• Rich Carving– Depict deities, mythological scenes, dancers, animals, and royal patrons.
• Structural Role– Support massive mandapas (pillared halls) while serving as artistic masterpieces.
• Architectural Precision- Displays pre-modern mastery over weight distribution, foundational physics, advanced geometry and stone engineering.

Significance

Historical Significance

• Madurai flourished under the Pandya Dynasty, while the Madurai Nayaks greatly expanded temple architecture during the 16th–17th centuries.
• The famous Thousand Pillar Hall (Aayiram Kaal Mandapam) reflects the zenith of Nayak architecture and sculpture.

Architectural Significance

• Represents the Dravidian style of temple architecture.
• Combines religion, science, art, and engineering in a single monument.
• Pillared halls served as venues for religious rituals, cultural performances, and public gatherings.

Cultural Importance

• Preserves traditional sculpture, iconography, and temple-building techniques.
• Strengthens India’s tangible cultural heritage.
• Promotes heritage tourism and awareness of indigenous engineering knowledge.

Key Conservation Frameworks

• ASI and State Action- The Archaeological Survey of India and regional state departments perform physical repairs and site maintenance.
• Legal Protection- The Ancient Monuments and Archaeological Sites and Remains (AMASR) Act, 1958 stops illegal building near protected zones.
• National Database- The National Mission on Monuments and Antiquities records and lists cultural items across the country.

Conclusion

The temple pillars of Madurai illustrate the seamless integration of art, engineering, and spirituality in India’s civilizational legacy. As living monuments, they highlight the need to balance conservation, urban development, and public awareness to preserve these timeless architectural treasures.

Sustained conservation efforts will ensure that these monuments continue to inspire scholarship, tourism, and cultural pride.

Key Takeaways

Click image to enlarge for better readability

UPSC Prelims and Mains Practice Question

With reference to the musical pillars found in South Indian temples, consider the following statements:

1. They are generally carved from a single block of stone.
2. They produce different musical notes due to precision stone carving and resonance.
3. They are a characteristic feature of Dravidian temple architecture.

Select the correct answer:

(a) 1 and 2 only
(b) 2 and 3 only
(c) 1, 2 and 3
(d) 1 only

Answer: C

Mains Practice Question

Q. “Temple architecture in India reflects not only religious devotion but also remarkable achievements in science, engineering, and art.” Discuss (10 Marks)

India’s Underwater Cultural Heritage: New Archaeological Initiatives

Source: PIB
GS I: Indian Heritage and Culture

Why in the News?

The Ministry of Culture informed Parliament about ongoing underwater archaeological research and exploration at key submerged heritage sites across India.

News in Brief

• The Government has granted new licences for underwater excavation and exploration to specialised institutions.
• Budget allocations and capacity-building initiatives for underwater archaeology were highlighted.
• A roadmap identifying major underwater exploration sites up to 2030 was announced.

Key Highlights

Ongoing Projects and Licenses

• ASI Exploration Sites- The Archaeological Survey of India (ASI) is actively exploring underwater cultural heritage sites at Dwarka and Bet Dwarka in Gujarat, Mahabalipuram in Tamil Nadu, and Karaikal in Puducherry to discover and protect India’s submerged history.
• Poompuhar Project- The Tamil Nadu State Department of Archaeology holds a license for underwater work at Poompuhar and has set aside ₹7 crores for land and sea digs.
• NIO Operations- The National Institute of Oceanography is licensed for work at Bet Dwarka, Chhari, and Gangata Bet.

Funding and Training

• Budgets– The Union Government has allocated funds for underwater archaeology, while Tamil Nadu and the National Institute of Oceanography (NIO) have also earmarked financial support for these marine exploration activities.
• Capacity Building- The ASI has started specialized training programs to build local expertise in underwater surveying.

The following sites have been identified for underwater exploration/excavation up to 2030,

Significance and Challenges

• Preserves India’s maritime history and cultural legacy.
• Provides evidence of ancient trade networks and coastal civilisations.
• Supports heritage tourism and scientific research.
• Strengthens conservation of submerged archaeological resources.

Challenges

• High cost and technological complexity of underwater excavation.
• Natural deterioration due to marine conditions.
• Looting and illegal salvage of artefacts.
• Limited trained marine archaeologists and specialised equipment.

About Underwater Cultural Heritage (UCH)

• Comprises all traces of human existence with a cultural, historical, or archaeological character that have been partially or totally under water (in oceans, seas, lakes, or rivers) continuously or periodically for at least 100 years.

Key Categories of UCH

• Submerged Settlements- Ancient cities, ports, and dwellings lost to rising sea levels or tectonic shifts (e.g., Mahabalipuram and Dwarka in India, or Heracleion in Egypt).
• Shipwrecks and Aircraft- Vessels and planes resting on seabeds, often containing cargo, personal items, and structural data about maritime trade and naval warfare.
• Prehistoric Sites- Landscapes and artifacts from early human migrations preserved under water before modern shorelines formed.

Threats to Underwater Heritage

• Illegal removal of artefacts- Looting and treasure hunting damage underwater heritage sites and destroy valuable historical evidence.
• Environmental Pressures- Climate change, severe coastal erosion, rising sea temperatures, and industrial pollution accelerate the decay of submerged materials.
• Marine Infrastructure- Dredging, anchoring, and coastal construction physically disrupt delicate seabed sites.

Preservation and Management

• UNESCO 2001 Convention- Provides the primary international legal framework to protect UCH, prioritizing in situ (on-site) preservation and preventing commercial exploitation.
• National Operations- Agencies like the Archaeological Survey of India (ASI) run active underwater exploration and excavation wings targeting historical coastal zones.

Key Takeaways

UPSC Prelims and Mains Practice Question

With reference to the recent initiatives on Underwater Cultural Heritage in India, consider the following statements:

1. The Archaeological Survey of India (ASI) is currently undertaking underwater archaeological research at Dwarka, Bet Dwarka, Mahabalipuram, and Karaikal.
2. The Government has granted the Tamil Nadu State Department of Archaeology a licence for underwater exploration at Poompuhar.
3. Vijay Durg and Janjira have been identified as priority sites for underwater exploration up to 2030.

Which of the statements given above is/are correct?

A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3

Answer: D

Mains Practice Question

Q. “India’s underwater cultural heritage is an important component of its civilisational and maritime legacy. Discuss its significance, challenges, and the measures required for its conservation.” (150 words)

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