UPSC Current Affairs 22 August 2026

• The Concept: A youth-centric, monsoon-themed cultural event specifically dedicated to the "Malhar" family of classical Hindustani ragas, traditionally associated with the arrival of rains.
• Organizers: Spearheaded by the organization Antar Hriday Connect, with former Foreign Secretary and Rajya Sabha MP Shri Harsh Vardhan Shringla serving as Chief Patron.
• Free Public Access: To democratize classical arts, the grand musical concerts featuring prominent vocalists, percussionists, and instrumentalists were kept free for the youth.
• Honouring Legends: Celebrated maestros, including Hindustani vocalist Pt. Ulhas Kashalkar and Kathak exponent Pt. Rajendra Gangani, were formally felicitated for lifetime contributions.

• The 2026 Theme: The festival operated under the banner "Iridescence: The Spectrum of Expressions", symbolizing the fluid and multi-coloured nature of youth identity and artistic perspectives.
• Technological Integration: For the first time, organizers built a custom WebGL interactive 3D Virtual Campus allowing global online participants to explore St. Xavier’s historic campus digitally.
• Massive Footfall: Managed entirely by a student workforce of over 1,500 volunteers, the festival welcomed over 15,000 to 20,000 attendees from colleges nationwide.
• Social Impact Pre-Events: Leading up to the main days, the Malhar workforce organized a "Run for a Cause" marathon for cancer awareness and large-scale beach cleanups across Mumbai.
• Key Events: Featured highly publicized interactive sessions with prominent figures like IAS officer Tukaram Mundhe, alongside live dubbing masterclasses, independent media conclaves, and musical concerts.

• Organisers: Developed by the Territorial Army alongside CyberPeace, a prominent Indian cybersecurity non-profit organisation.
• Edition: This is the 3rd iteration of the event, building on the initial rollouts in 2024 and 2025.
• Primary Aim: To crowdsource cutting-edge, domestic technological tools tailored for information warfare and defence infrastructure.
• Target Audience: Open to students, ethical hackers, AI professionals, data analysts, drone experts, and digital content creators.

• Bug Hunting: A core cybersecurity segment where participants tackle an online Capture-the-Flag (CTF) qualifier before hunting vulnerabilities inside simulated critical military infrastructure.
• AI Kavach: A machine learning-centric track focused on building predictive threat systems, anomaly radars, and automated response frameworks.
• Creators Challenge: A media and digital storytelling tier tasking influencers and communicators with designing campaigns against deepfakes, phishing, and misinformation.

• Registration Deadline: 31 August 2026.
• Online Shortlisting Phase: 1 September to 10 September 2026.
• Grand Finale: A 36-hour live sandbox hackathon held in New Delhi from 6 October to 8 October 2026.
• Award Ceremony: Scheduled for 9 October 2026.

• Rewards: Top performers receive cash prizes and formal commendation certificates.
• Networking: Finalists directly engage with senior military leadership and top government tech officials.
• Exclusive Access: Select winners will secure exclusive visits to premier, restricted Indian Defence Establishments.

• Smart Prodrug Design: RK-251 is engineered as a "prodrug"—an inactive chemical substance that remains completely harmless while circulating through normal, healthy tissues.
• ROS-Responsive Trigger: Cancer cells naturally contain abnormally high levels of Reactive Oxygen Species (ROS). RK-251 uses this harsh chemical environment as a key to turn itself "on".
• Releasing the Payload: Upon encountering elevated ROS inside a cancer cell, the prodrug splits apart to release a potent, pre-existing anticancer molecule called NBDHEX.
• Inhibiting Cancer Defence: Once released, NBDHEX binds to and blocks GSTP1, a detoxification protein that tumour cells actively use to survive and resist treatment.
• Solves Delivery Limitations: On its own, NBDHEX is water-insoluble and poorly absorbed by the body. Chemically masking it into the RK-251 prodrug successfully overcomes this drug-delivery challenge.

• Fluorescent Tagging: The RK-251 molecule is equipped with a specific near-infrared fluorescent marker known as QCy7.
• Real-Time Tracking: When the drug encounters ROS and triggers cell death, it simultaneously glows. This permits medical researchers to track exactly where, and how effectively, the drug is activating inside the body in real time.
• Preclinical Stage Only: Despite the massive excitement, RK-251 is an experimental candidate and has not yet been tested on human patients.
• Long Regulatory Road: Before it can sit on pharmacy shelves or be deployed in hospitals, it must clear rigorous animal safety scales, establish precise dosing guidelines, and successfully complete multi-phase human clinical trials.

• Combats Aggressive Cancers: In laboratory cell cultures, RK-251 demonstrated aggressive efficacy against triple-negative breast cancer (TNBC) cells, a subtype notorious for lacking receptors and being incredibly difficult to treat.
• Minimal Side Effects: Unlike broad-spectrum chemotherapy, the drug showed almost zero toxic effects on nearby non-malignant, healthy human cells.
• Animal Safety Testing: Live testing on zebrafish embryos (Danio rerio) demonstrated no structural or behavioural toxicity, validating the safety of its targeted activation mechanism.

• Local Innovation: Developed by Kawa UAV Pvt. Ltd. (HoverIt), a defence startup based in Lucknow, Uttar Pradesh.
• Rapid Turnaround: The program progressed from a blank-page concept to its first successful flight test in under 8 to 12 months.
• Industrial Corridor: The drone was created under the framework of the UP Defence Industrial Corridor Framework, which provides infrastructure support to local startups.
• Zero Foreign Reliance: The entire system—including the airframe, payload, guidance software, and critical subsystems—was built completely within India without any imports.

• Weapon Classification: It operates as a next-generation loitering munition, commonly known as a suicide or kamikaze drone, designed to hunt and crash directly into a target.
• Target Focus: Engineered to neutralize high-value enemy assets, command posts, radars, air-defence systems, and personnel in heavily contested airspaces.
• Estimated Range: Though official numbers remain classified, industry data indicators peg its operational range at approximately 300 to 400 km.
• High Payload Capacity: Capable of carrying an onboard explosive warhead or specialized modular sensors weighing up to 15 to 20 kg.
• Estimated Speed: Cruises at a swift speed of 250 to 300 km/h.

• Indigenous Turbojet: Powered by a 40 kgf-class micro-turbojet engine engineered entirely by New Delhi-based DG Propulsion.
• Differentiating Feature: Unlike traditional loitering munitions (such as Iran's Shahed-136) that rely on slower, propeller-driven piston engines or electric motors, the Mk3 acts closer to a miniature jet aircraft.
• Tactical Speed & Surprise: The turbojet power dramatically reduces the time available for enemy air defence systems to detect, track, and engage the incoming weapon.
• High-Altitude Relevance: Jet engines effectively overcome the severe atmospheric density and engine de-rating performance penalties typical of piston systems when operating over high-altitude borders like Eastern Ladakh.

• AI Integration: Equipped with autonomous flight controls and AI-enabled target-engagement architecture.
• Operational Profile: It can autonomously loiter over a designated conflict zone, intelligently hunt for targets, and strike on demand while maintaining high survivability.

• India's First River-Interlinking Project: It serves as the pioneer project under the country's National Perspective Plan (NPP) formulated in 1980.
• Core Objective: To transfer surplus water from the Ken River (Madhya Pradesh) to the water-deficit Betwa River (Uttar Pradesh).
• Geography: Both rivers are key right-bank tributaries of the Yamuna River.
• Primary Target: Providing water security to the drought-prone, socio-economically vulnerable Bundelkhand region.
• Implementing Agency: Managed by the Ken-Betwa Link Project Authority (KBLPA), a dedicated Special Purpose Vehicle.

• Total Estimated Budget: Allocated at ₹44,605 crore.
• Funding Model: Central government is funding 90% of the project cost.
• Current Status: Foundation stone was laid by PM Narendra Modi in December 2024; scheduled for full completion by 2030.
• Human Displacement: Construction will completely displace over 7,000 tribal and rural families.
• Environmental Impact: The project submerges a massive chunk of the Panna Tiger Reserve, threatening core wildlife habitats, regional biodiversity, and vulture nesting sites.

• Daudhan Dam: A 77-metre high, 2-km wide dam currently under construction on the Ken River.
• Link Canal: A 221-km long canal network (including a 2-km water tunnel) to route the water flow.
• Phase I Scope: Focuses entirely on the Daudhan Dam complex, powerhouses, and the main link canal.
• Phase II Scope: Encompasses the Lower Orr Dam, the Bina Complex Multipurpose Project, and the Kotha Barrage.

• Irrigation Expansion: Targets the annual irrigation of 10.62 lakh hectares of agricultural land across MP and UP.
• Drinking Water Security: Expected to provide clean drinking water to 62 lakh (6.2 million) people.
• Regional Coverage: Benefits 12 districts in Madhya Pradesh and 10 districts in Southern Uttar Pradesh.
• Clean Energy Generation: Built to generate 103 MW of hydropower and 27 MW of solar power.

• Classification: Sea urchins are marine invertebrates belonging to the phylum Echinodermata. They share this phylum with starfish, sand dollars, and sea cucumbers.
• Global Distribution: They populate every ocean on Earth, spanning from warm tropical coral reefs to freezing polar waters.
• Depth Range: While most commonly found in shallow intertidal zones and rocky coasts, they can survive on the deep ocean floor at depths exceeding 5,000 to 7,000 metres.

• The "Test": Their body is enclosed in a rigid, spherical, or somewhat flattened outer exoskeleton called a test, which is composed of interlocking calcium carbonate plates.
• Spines & Protection: They are covered in movable, sharp spines used for defence and movement. Some tropical species, like the flower urchin, possess highly toxic venom glands within their spines or small pinchers (pedicellariae).
• Water Vascular System: They lack true blood. Instead, they use a specialized hydraulic water vascular system to pump seawater through their "tube feet" to move, grasp objects, and breathe.
• Aristotle’s Lantern: Their mouth is located on the underside and contains a complex, highly efficient chewing apparatus called Aristotle's lantern, equipped with five sharp teeth strong enough to scrape rock.

• Feeding Habitats: Primarily herbivorous or opportunistic omnivores, their main diet consists of algae, kelp, and marine plant matter.
• Ecosystem Engineers: They function as "underwater gardeners". By grazing on algae, they clear space for slow-growing corals to anchor and thrive.
• Urchin Barrens: When their natural predators (like sea otters, lobsters, and sunflower sea stars) are overfished, sea urchin populations explode. They can overgraze entire kelp forests, turning productive ecosystems into aquatic deserts called urchin barrens.

• Culinary Delicacy: Their reproductive organs, known as Uni, are considered a luxury seafood delicacy globally, particularly in Japan for sushi.
• Illegal Smuggling: High market demand has triggered a rise in black-market poaching, pushing countries like Greece to institute severe fines and prison sentences to prevent overexploitation.
• Conservation: While historically abundant, the combination of ocean warming, heavy pollution, and the recent ciliate pandemic has landed species like the European Edible Sea Urchin on the IUCN Near Threatened (NT) list.

• Definition: A craton is an ancient, exceptionally stable portion of the Earth's continental crust and topmost mantle.
• Characteristics: They are found in the deep interiors of tectonic plates, have survived billions of years without major tectonic disruption, and act as the foundational bedrocks of modern continents.

• Region: Located in eastern India, spanning major portions of Jharkhand and Odisha, with extensions into West Bengal.
• Boundaries: Situated between the Chhota Nagpur plateau to the north and the Eastern Ghats mobile belt to the south.

• Age: Houses some of the planet's oldest geological formations, dating between 3.2 to 3.8 billion years old (Archean Eon).
• Greenstone Successions: It features unique "greenstone belts"—rock assemblages consisting of submarine volcanic rocks (like komatiites and pillowed lava) mixed with minor sedimentary rocks.
• Global Links: Its geology shares stark similarities with South Africa’s Barberton area and Western Australia's Pilbara Craton, indicating these regions experienced identical underwater volcanic activity 3.5 billion years ago.
• First Landmass Theory: A previous breakthrough study in 2021 established that parts of the Singhbhum Craton formed Earth's earliest beach and continental landmass exposed to air around 3.2 billion years ago, challenging the previous timeline that continents only emerged 2.5 billion years ago.

• Iron Ore: Contains world-class Banded Iron Formations (BIFs) mined heavily at Noamundi, Gua, and Badampahar.
• Uranium & Copper: Hosts the famous Singhbhum Shear Zone, which contains India's premier uranium and copper deposits.
• Other Minerals: Rich in massive deposits of chromite, manganese, limestone, and gold.

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