Daily Current Affairs 17 August 2026 – IAS Current Affairs

Current Affairs 17 August 2026 focuses on the Prelims-Mains perspective. Major events are :

Odisha Coastal Erosion: Causes, Impacts And Measures

Source: Indian Express
GS I: Geography, GS III: Environment and Ecology- Conservation and coastal management, climate change, Disaster Management

Why in the News?

Union Minister for Ports, Shipping and Waterways Sarbananda Sonowal stated in the Rajya Sabha that about 28% of Odisha’s 564-km coastline is undergoing erosion.

News in Brief

• The assessment is based on the National Centre for Coastal Research (NCCR) study of shoreline changes during 1990–2022.
• Six coastal districts — Ganjam, Puri, Jagatsinghpur, Kendrapara, Bhadrak and Balasore  have been identified as facing significant coastal erosion.
• The issue is significant because coastal erosion is threatening land, livelihoods, settlements and coastal infrastructure.
• Odisha is adopting measures such as geotextile tubes, sea walls and sea-wall-cum-serving roads, along with climate-resilient resettlement.

Coastal Erosion and its Causes

Coastal erosion is the gradual removal and landward retreat of coastal land due to the action of waves, tides, currents, storms and sea-level changes.

Major Causes of Coastal Erosion

Impacts of Coastal Erosion

Environmental Impacts

• Loss of beaches and ecosystems: Erosion destroys beaches, dunes, mangroves and wetlands.
• Habitat degradation: Loss of coastal habitats threatens marine biodiversity.
• Shoreline alteration: Sediment loss changes beach shape, width and stability.
• Greater storm-surge exposure: Loss of natural barriers increases wave and storm-surge impacts.

Economic Impacts

• Loss of productive land: Agricultural and other economically valuable coastal land is lost.
• Infrastructure damage: Roads, houses, ports, embankments and tourism facilities are affected.
• Livelihood losses: Fisheries, aquaculture and other coastal livelihoods face disruption.
• Higher protection costs: Governments incur greater expenditure on coastal protection, rehabilitation and resettlement.

Social Impacts

• Displacement: Severe erosion can make coastal settlements uninhabitable.
• Loss of assets: Communities may lose homes, farmland and livelihood assets.
• Migration: Persistent erosion can force people to migrate inland.
• Pressure on inland areas: Migration increases demand for housing, jobs and public services.

Disaster-Risk Implications

• Reduced natural protection- Loss of beaches, dunes and mangroves weakens coastal buffers.
• Higher cyclone vulnerability- Communities become more exposed to cyclones and storm surges.
• Greater disaster losses- Extreme events0can cause greater damage to lives, property and infrastructure.
• Compounding climate risks- Sea-level rise and coastal hazards can further intensify long-term vulnerability.

Measures to Address Coastal Erosion

Geotextile Tubes

• Geotextile tubes are large, cylindrical structures made of high-strength, permeable synthetic fabric, which are generally filled with a mixture of sand and water (sand slurry).
• They are placed along vulnerable stretches of the coast to provide physical protection against wave action.
• Functions
  • Act as artificial coastal barriers: They form a protective barrier between the sea and vulnerable coastal areas.
  • Absorb wave energy: Their structure helps dissipate the energy of incoming waves before they reach the shoreline.
  • Reduce wave impact: By weakening wave force, they minimise the removal of beach sediments.
  • Control coastal erosion: They help stabilise vulnerable stretches of the shoreline.
  • Serve as embankments: They can also be used to reinforce coastal embankments and protect settlements and infrastructure.
• Odisha example: A geotextile tube embankment at Pentha village in Kendrapara district is being used as a coastal protection measure against erosion.

Sea Walls

• Sea walls are engineered vertical or sloping barriers constructed along the shoreline to protect coastal land, settlements and infrastructure from direct wave action.
• Functions
  • Reduce the direct impact of waves on the coast.
  • Prevent or slow down the landward retreat of the shoreline.
  • Protect settlements, roads, agricultural land and other infrastructure.
  • Provide immediate protection to highly vulnerable coastal stretches.
• Limitation
  • Sea walls are hard-engineering structures and can interfere with natural coastal processes.
  • They may alter sediment movement and beach morphology.
  • Reflection of wave energy can sometimes increase erosion in front of the wall or transfer erosion to adjoining unprotected areas.
  • Therefore, their construction should be based on site-specific scientific assessment.

Sea-wall-cum-Serving Roads

• Sea-wall-cum-serving roads combine coastal protection with transportation infrastructure.
• They are being developed across parts of Balasore and Ramayapatna in Ganjam.
• Functions:
  • Coastal protection: The sea-wall component acts as a barrier against strong tidal waves and helps reduce coastal erosion.
  • Connectivity: The road component provides access for local communities, transportation and maintenance activities.
  • Infrastructure resilience: Such integrated structures can protect vulnerable coastal stretches while simultaneously improving connectivity.
  • Emergency access: Roads can also facilitate the movement of people, relief materials and emergency services during coastal disasters.
• Limitation- Like other hard structures, they need careful planning because they may interfere with natural sediment transport and potentially shift erosion to nearby stretches.

Climate-Resilient Resettlement

• Where coastal erosion becomes severe and persistent, protecting the existing settlement may not be technically or economically viable.
• In such cases, planned relocation to safer areas can be adopted as a long-term adaptation strategy.
• Key aspects
  • Disaster-risk reduction: Moves communities away from highly erosion-prone and low-lying coastal areas.
  • Safe housing: Provides more secure and climate-resilient residential infrastructure.
  • Livelihood rehabilitation: Resettlement should include access to employment, fisheries-related facilities, agricultural opportunities and other livelihood sources.
  • Basic services: New settlements need adequate water, sanitation, roads, healthcare, education and electricity.
  • Social rehabilitation: Relocation should consider community networks, cultural ties and access to traditional livelihood areas.
• Odisha example– Climate-resilient settlement initiatives have been undertaken for communities affected by severe coastal erosion, demonstrating the importance of combining physical protection with planned adaptation and rehabilitation.

Challenges in Coastal Management

• Development–environment conflict: Ports, industries, tourism and infrastructure development can disturb fragile coastal ecosystems.
• High protection costs: Sea walls, embankments, geotextile structures and rehabilitation require substantial financial resources.
• Community displacement: Severe erosion may force relocation, creating livelihood and rehabilitation challenges.
• Altered sediment dynamics: Hard structures can disrupt natural sediment movement and modify beach morphology.
• Fragmented governance: Multiple agencies and levels of government can lead to coordination gaps in coastal management.
• Lack of long-term planning: Short-term protective measures may overlook changing shoreline patterns and future climate risks.
• Rising climate risks: Sea-level rise, cyclones and storm surges are increasing pressure on vulnerable coastal areas.
• Erosion transfer: Protecting one coastal stretch with hard structures may divert wave energy or sediment, worsening erosion in neighbouring areas.

Way Forward and Conclusion

Adopt ICZM and CRZ regulations, strengthen shoreline monitoring, prioritise nature-based solutions, and use hard engineering selectively. Community participation, climate-resilient infrastructure and livelihood rehabilitation should be ensured.

A balanced approach integrating development, ecosystem protection and community resilience is essential for sustainable coastal management.

Key Takeaways

UPSC Prelims and Mains Practice Question

Consider the following statements regarding coastal erosion in Odisha:

1. The National Centre for Coastal Research monitors long-term shoreline changes along India’s coast.
2. Geotextile tubes can be filled with sand slurry and used as artificial coastal structures.
3. Coastal erosion is caused exclusively by climate change-induced sea-level rise.

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: 1 and 2 only

Mains Practice Question 

Q. Coastal erosion is both an environmental and socio-economic challenge for India. Discuss the major causes and impacts of coastal erosion. Suggest an integrated strategy for sustainable coastal management. (250 Words)

Vaishya Tekri Stupa

Source: Indian Express

GS I: Indian Heritage and Culture

Why in the News?

The Madhya Pradesh government has renewed efforts to excavate and restore Vaishya Tekri, an ancient mound in Ujjain believed to contain the remains of a large Mauryan-era stupa.

News in Brief

• The site was first excavated in 1938–39 by the Archaeological Department of the erstwhile Gwalior State.
• The renewed excavation is significant because the old excavation report described the monument as an exceptionally large stupa, estimated at around 350 feet in diameter and more than 100 feet high, potentially much larger than the famous 54-foot-high Sanchi Stupa.
• The Archaeological Survey of India (ASI) has proposed fresh excavation, while the district administration has initiated steps to acquire about 40 acres of surrounding land for the project.

Key Highlights 

• The excavation report described Vaishya Tekri as a “huge stupa”.
• Diameter: approximately 350 feet
• Height: more than 100 feet
• By comparison, the Sanchi Stupa is approximately 54 feet high.
• However, the present mound’s original form has been substantially lost, making it difficult to establish the exact original plan and elevation.

Unusual Construction Technology

• The construction technique was one of the most striking findings.
• The core consisted of locally available blackish murum, a gravelly/earth material, which was heavily rammed.
• The exterior was covered with brick masonry laid in mud mortar.
• The bricks were exceptionally large:
  • One variety measured about 22¼ × 18¼ × 3¾ inches.
  • Another measured about 22¼ × 15¼ × 3¼ inches.
• The engineering technique indicates sophisticated knowledge of large-scale structural construction during the period.

Bowl-shaped Base

• The base of the stupa had an unusual bowl-like form.
• Its sloping sides helped resist the oblique outward thrust generated by the enormous mass above.
• The masonry gradually narrowed towards the top.
• This demonstrates adaptation of structural design to the challenges of constructing a very large solid monument.

Evidence of a Moat

• Excavators found that large quantities of murum used for the core had been taken from the surrounding area.
• The excavated area subsequently formed a regular square moat around the stupa.
• A gap on the western side indicated a possible passage across the moat.
• The report suggested that this may have been an access route for worshippers approaching from the city, which was situated in that direction.

Evidence of Antiquity

• The size and dimensions of the bricks indicated a Mauryan-period structure, around the 3rd century BCE.
• This interpretation was further supported by:
  • A punch-marked coin
  • A cast Avanti coin
• The finds provide archaeological evidence connecting the site with the wider historical and economic landscape of ancient Ujjain.

Connection with Ashoka

• Ujjain was an important urban centre during the Mauryan period.
• Ashoka is traditionally associated with Ujjain, having reportedly served as its governor before becoming emperor.
• According to ASI, the name Vaishya Tekri is linked to the tradition that Ashoka’s queen came from the Vaishya/merchant community.
• Ashoka is widely associated with the construction and expansion of Buddhist stupas across the Mauryan Empire.
• However, archaeologists have not established conclusively that Vaishya Tekri was built by Ashoka.
• Therefore this stupa could be possibly Mauryan and potentially associated with Ashokan-era Buddhist activity, but direct attribution remains unproven.

Historical Significance of the Site 

• Ujjain was an important city in ancient India and a major centre in the Avanti region.
• Its location connected northern and western India with important trade and cultural routes.
• Its association with Ashoka gives the site additional significance for understanding the spread of Buddhism and Mauryan state influence.

Buddhist Heritage

• Stupas served as important Buddhist commemorative and religious monuments.
• Their construction and expansion under the Mauryas demonstrate the interaction between,
  • State patronage
  • Religion
  • Architecture
  • Urban centres
  • Long-distance cultural networks

Archaeological Engineering

• Vaishya Tekri is important not merely because of its size but because it may provide evidence of,
  • Large-scale construction techniques
  • Use of locally available materials
  • Load-bearing and thrust-management techniques
  • Brick-making technology
  • Monumental architecture during the Mauryan period.

Key Takeaways

UPSC Prelims Practice Question

Consider the following statements regarding Vaishya Tekri:

1. It is located in Ujjain, Madhya Pradesh.
2. The 1938–39 excavation report described it as a large stupa potentially dating to the Mauryan period.
3. Archaeological evidence has conclusively established that the stupa was built by Emperor Ashoka.
4. The excavation reported the use of rammed murum as the core and brick masonry as the exterior.
   Which of the statements given above are correct?
   (a) 1, 2 and 4 only
   (b) 1 and 3 only
   (c) 2, 3 and 4 only
   (d) 1, 2, 3 and 4
   Answer: (a)

Sri Aurobindo

Source: PIB
GS I: Modern Indian History- Significant Personalities

Why in the News?

Prime Minister Narendra Modi paid tribute to Sri Aurobindo on his birth anniversary on 15 August 2026

News in Brief

• Sri Aurobindo was remembered on his birth anniversary for his contributions as a philosopher, nationalist, poet and thinker.
• He dedicated his life to India’s freedom struggle as well as the broader quest for human progress.
• His ideas on India’s destiny and the possibilities of human transformation continue to remain relevant.

Sri Aurobindo

• Sri Aurobindo was a philosopher, poet, poet and a nationalist leader.
• He was an early pioneer of the freedom movement who demanded complete independence for India.
• Later, he moved to Puducherry (Pondicherry) to create Integral Yoga and founded the Sri Aurobindo Ashram.

His Early Life

• Sri Aurobindo was  born in Kolkata on August 15, 1872.
• He was educated in England at St. Paul’s School and King’s College, Cambridge.
• Later he returned to India and joined the nationalist movement, openly calling for freedom through his writings in newspapers like Bande Mataram.
• He was imprisoned during the Alipore Conspiracy Case (1908), where he underwent a profound spiritual transformation.

Role in Freedom Struggle

• Sir Aurobindo was associated with the Extremist/Nationalist phase of Indian Nationalism.
• Advocated complete independence (Swaraj) and assertive nationalism.
• Supported methods such as Swadeshi, Boycott, National Education and Passive Resistance.
• Used journalism and political writings to spread nationalist ideas, including through Bande Mataram, Karmayogin and Dharma.
• His political role was particularly significant during the Swadeshi period.
• Advocated complete independence (Swaraj) and assertive nationalism.
• Supported methods such as Swadeshi, Boycott, National Education and Passive Resistance.
• Used journalism and political writings to spread nationalist ideas, including through Bande Mataram, Karmayogin and Dharma.
• His political role was particularly significant during the Swadeshi period.

Alipore Conspiracy Case

• Sir Aurobindo was arrested in 1908 in connection with the Alipore Conspiracy Case.
• He spent about one year as an undertrial prisoner and was subsequently acquitted.
• The imprisonment became a turning point, strengthening his engagement with spiritual practice.

Sir Aurobindo as Philosopher

• After gradually withdrawing from active politics, Sri Aurobindo devoted greater attention to philosophy, Spirituality and yoga.
• His philosophical writimgs addressed,  human evolution, Indian civilization, yoga, society, human unity, poetry and literature, Indian scriptures.
• His important works include,

Integral Yoga

• Integral Yoga is one of Sri Aurobindo’s important philosophical concepts.
• It views spiritual development not as withdrawal from worldly life, but as the transformation of human consciousness and life itself.
• His thought connects the evolution of the individual with the wider evolution of humanity.

 Human Evolution and Nationalism

• Sri Aurobindo viewed humanity as part of an evolutionary process of consciousness.
• His nationalism went beyond political freedom and had cultural and spiritual dimensions.
• It encompassed political freedom, national self-confidence, cultural regeneration, social transformation, spiritual development and ultimately human unity.

Sri Aurobindo and Indian Culture

• His writings engaged with Indian civilisation, philosophical traditions, the Vedas, Upanishadic thought, the Bhagavad Gita and Indian literature, while also examining the relationship between Indian and Western civilisation.
• Sri Aurobindo eventually settled in Pondicherry, where he focused on spiritual practice and philosophical work.
• The Sri Aurobindo Ashram subsequently developed as a centre of spiritual and educational activities.

Aurobindo and The Mother

• The Mother (Mirra Alfassa) became Sri Aurobindo’s spiritual collaborator.
• Born in Paris in 1878, she first met Sri Aurobindo in Pondicherry in 1914 and returned there permanently in 1920.
• After Sri Aurobindo withdrew from active participation in 1926, she took charge of the Ashram and later established the Sri Aurobindo International Centre of Education and Auroville.

Conclusion

Sri Aurobindo’s legacy represents a unique synthesis of nationalism, cultural regeneration, philosophy and Spiritual evolution.

His vision moved beyond political freedom towards the transformation of individual and collective consciousness, making his ideas relevant to contemporary debates on human progress, ethical development and national identity.

Key Takeaways

UPSC Prelims Practice Question

Consider the following statements regarding Sri Aurobindo:

1. Sri Aurobindo was born on 15 August 1872.
2. He was arrested in connection with the Alipore Conspiracy Case.
3. The Life Divine is one of his major philosophical works.

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. 1, 2 and 3

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