Daily Current Affairs 20 April 2026 for UPSC

Daily Current Affairs 20 April 2026 highlights important updates across tribal affairs, advanced manufacturing, biodiversity, and technological governance in India. It covers key developments such as the recognition of vulnerable tribal groups, progress in semiconductor manufacturing, and initiatives for AI governance. This also focuses on environmental conservation through species discovery and ecological awareness. 

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Along with this, it explains important economic concepts that are relevant for competitive exams. Overall, Daily Current Affairs 20 April 2026 provides a clear and concise summary of major national developments, helping aspirants stay updated with current events and understand their broader impact.

Laanjia Sora Tribe: A Particularly Vulnerable Tribal Group

Laanjia Sora Tribe, originating from Odisha, holds the status of a Particularly Vulnerable Tribal Group (PVTG). This designation is given to tribal communities facing significant backwardness. Historically, these groups were known as Primitive Tribal Groups (PTG) before being renamed PVTG.

Criteria for PVTG Categorization

The Dhebar Commission established specific criteria for identifying PVTGs:

1. Pre-Agricultural Level of Technology: Dependence on shifting cultivation (Jhum cultivation), hunting, and gathering, indicating a technology level preceding settled agriculture.
2. Stagnant or Declining Population Growth: Their population growth has either halted or is decreasing.
3. Extremely Low Literacy Levels.
4. Subsistence Economy: An economy focused on meeting daily needs, reflecting poverty and socio-economic backwardness.

PVTGs in India

There are 75 PVTG communities across various states and Union Territories in India. Odisha has the highest number, with 13 of these 75 communities.

Characteristics and Challenges

The Laanjia Sora Tribe lives a nature-centric lifestyle, with rituals involving trees and natural forces, including the worship of the sun, trees, and forests. They inhabit dense forests and hilly regions of Odisha, primarily in the Rayagada and Gajapati districts of the Eastern Ghats. Music, drum, and dance are integral to their rituals, and they commonly wear large metal earrings. Tattoos are also prevalent; older generations traditionally had permanent geometric tattoos, while newer generations often opt for temporary designs.

Their culture and habitat face significant threats from modernization, which can erode traditional practices. Their reliance on shifting cultivation raises concerns about long-term sustainability. Furthermore, deforestation and development in the Eastern Ghats are causing habitat loss for the tribe.

India’s First Semiconductor Fabrication Plant at Dholera SEZ

India is moving towards self-reliance (Atmanirbhar Bharat) in semiconductor chip manufacturing by establishing fabrication plants (fabs). 

Special Economic Zones (SEZs) are crucial for this, offering advantages like subsidized land, simplified tax structures, and easier regulations to boost production and exports.

Dholera’s Landmark Project

The first Indian semiconductor fabrication plant is being set up in the Dholera Special Economic Zone, Gujarat.

• Developer: Tata Semiconductor Manufacturing Private Limited.
• Investment: Approximately ₹91,000 Crore.
• Area: Covers 66 hectares.
• Employment: Expected to create around 21,000 jobs.

Importance of Domestic Manufacturing

Domestic semiconductor manufacturing is vital to reduce India’s dependency on foreign countries like Taiwan. Semiconductors are fundamental components in all electronic devices, and their rising global demand makes local production essential.

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Understanding Semiconductors

Semiconductors exhibit properties between conductors and insulators, allowing precise regulation of electric current flow, which is crucial for electronic circuits.

Challenges in Chip Manufacturing

The manufacturing process is highly complex, requiring nano-scale precision, often taking up to 3 months per chip. It necessitates ultra-clean rooms with strictly controlled temperature, humidity, and absence of vibration and dust, as minor deviations can damage chips. 

Establishing a fabrication plant requires substantial investment, typically $3 to $20 billion, and involves advanced, massive equipment like lasers, robotics, and optics. Chips are produced on silicon wafers; larger wafers yield more chips and reduce per-unit cost but demand greater infrastructure.

Gecko: Cryodactylus Jay Jay Aditya Ray Discovered

A new species of small, carnivorous lizard, named Cryodactylus Jay Jay Aditya Ray, has been discovered in Tripura. It is named after Jayaditya Purkayastha, an acclaimed herpetologist (a zoologist studying reptiles and amphibians) from Assam. Its closest known relative is Cryodactylus tripuraensis, also found in Tripura.

This gecko is nocturnal, active primarily at night, and hides in ground holes or burrows during the day. It inhabits lowland forest fringes. Currently classified as Data Deficient by the IUCN due to its recent discovery, future assessments might classify it as Threatened.

This discovery highlights the rich biodiversity of the Indo-Burma region and increases the number of Cryodactylus species in Northeast India to 31, suggesting potential for further new species discoveries.

State of India’s Bats 2024-2025

Bats, often carrying a negative perception due to associations with diseases, are in fact the only flying mammals. They play crucial ecological roles:

• Pollination: Consuming fruits, insects, and nectar, bats act as significant pollinators, similar to bees.
• Seed Dispersal: They travel long distances, dispersing seeds essential for forest regeneration and restoration of degraded lands.
• Pest Control: By consuming pests and mosquitoes, bats benefit farmers, reducing pesticide use and improving crop yields.

Bats are nocturnal and use echolocation (biological sonar) for navigation and hunting. (Memory Tip: Echolocation is a form of biological SONAR – Sound Navigation and Ranging.) They inhabit caves, trees, buildings, and monuments.

Notable Indian bat species include the Kolar Leaf-nosed Bat (Critically Endangered) and the Salim Ali Fruit Bat (Endangered).

Threats to Bat Populations

1. Habitat Destruction: Due to urbanization and deforestation.
2. Ecosystem Degradation: Caused by climate change.
3. Public Stigma and Persecution: Fear of disease transmission leads to bats being killed.
4. Infrastructure Development.
5. Policy Neglect: Lack of specific conservation policies.
6. Lack of Data: Insufficient research data hampers conservation.

Bats, with their long lifespan, are associated with zoonotic diseases. Fruit bats are primary reservoirs for the Nipah Virus (spreading via contaminated fruits) and are also linked to the Marburg Virus and Coronavirus.

First-Ever Bat Assessment in India

Conducted by Bat Conservation International and Nature Conservation Foundation, this assessment covered approximately 135 bat species. It found 35 species were Data Deficient, and among the studied species, 16 were endemic to India, with 7 classified as IUCN Threatened. The study primarily focused on the Western Ghats, with limited data from the North East Himalayas and islands.

Recommendations emphasize the need for better study and research, countering negative public perception by highlighting ecological benefits, developing improved policies, and conducting thorough studies on zoonotic disease risks.

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AIGEG: Artificial Intelligence Governance and Economic Group

The Artificial Intelligence Governance and Economic Group (AIGEG) aims to regulate and promote Artificial Intelligence (AI) in India through a “Whole-of-Government Approach,” involving collaborative efforts from various ministries. Established by the Ministry of Electronics and Information Technology (MeitY), it develops comprehensive AI guidelines.

Structure and Principles

AIGEG is chaired by the Union Minister for Electronics and IT (currently Ashwini Vaishnaw) and vice-chaired by the Minister of State for Electronics and IT (currently Jitin Prasada). Its members include the Principal Scientific Advisor, Chief Economic Advisor, and NITI Aayog representatives. The group is supported by a Technology and Policy Expert Committee.

Guiding principles acknowledge AI challenges like job displacement and social suitability risks, committing to fostering responsible AI innovation.

Mandate and Concerns

AIGEG’s mandate includes formulating a National AI Strategy, ensuring inter-ministerial coordination, and developing AI systems that are safe, transparent, accountable, and inclusive. It addresses concerns such as:

• Bias: Mitigating biases where AI systems might show partiality (e.g., consistently depicting right-handed individuals).
• Privacy Concerns.
• Misuse of AI.

Other responsibilities involve managing the impact of AI on jobs and skills and ensuring best practices in AI deployment. AIGEG integrates recommendations from the Economic Survey and existing AI Governance Guidelines, aiming to maximize AI’s public benefits while minimizing potential harms.

Previous Homework Review: Key Economic and Geographic Updates

This section clarifies common misconceptions about economic terms and geographical facts.

Memflation

Memflation defines the increasing prices of semiconductor memory chips. This trend is primarily due to a demand-supply mismatch, driven by high demand from AI data centers and insufficient supply. Therefore, statements indicating a decrease in prices are Incorrect.

Austria’s Borders

Austria does not border Poland. Statements suggesting otherwise are Incorrect.

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NBFCs (Non-Banking Financial Companies)

NBFCs are registered under the Companies Act, 1956 or 2013, making such a statement correct.

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