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1.RBI raises repo rate by 25 basis points to 5.50%, shifts stance to ‘calibrated tightening’

Key Policy Rates & Changes

• Policy Repo Rate (5.50%): The rate at which the RBI lends short-term funds to commercial banks against government collateral. An increase makes borrowing costlier, curbing aggregate demand and inflation.
• Standing Deposit Facility (SDF) (5.25%): The floor of the Liquidity Adjustment Facility (LAF) corridor; allows the RBI to absorb overnight excess liquidity without offering government securities as collateral.
• Marginal Standing Facility (MSF) & Bank Rate (5.75%): The ceiling of the LAF corridor; the rate at which scheduled banks borrow emergency overnight liquidity from the RBI against eligible securities.
• Stance — "Calibrated Tightening": Replaces the "Neutral" stance. It signals that rate cuts are ruled out for now; future actions will only be an incremental rate hike or a pause.

Statutory Framework

• Monetary Policy Committee (MPC): Formed under Section 45ZB of the RBI Act, 1934 (amended via Finance Act, 2016).
• Composition: 6 members (3 internal RBI members, including the Governor as Chairperson; 3 external members appointed by the Central Government). The Governor holds a casting vote in case of a tie.
• Inflation Target Mandate (FIT): Under Section 45ZA, the Central Government, in consultation with the RBI, sets the Consumer Price Index (CPI) inflation target at 4% with a tolerance band of 2% (2% to 6%).

3. Economic Concepts

• Headline vs. Core Inflation:
• Headline CPI: Measures total inflation across the entire basket, including volatile food and fuel.
• Core CPI: Strips out volatile food and fuel components to measure underlying price trends.
• Second-Round Effects: When temporary supply-side price spikes (e.g., crude oil or crop damage) spill over into broader wages, transportation costs, and general manufacturing prices.
• Monetary Transmission: Rate hike Banks raise MCLR/EBLR loan interest rates EMIs increase Credit expansion slows Consumption demand cools Inflation moderates

2.2026 Nobel medicine prize:

The Award & Laureates

• Winners: Karl Deisseroth (USA), Peter Hegemann (Germany), and Georg Nagel (Germany).
• Field of Discovery: "Light-gated ion channels and Optogenetics".

What is Optogenetics?

• Definition: A revolutionary biological technique that uses light to control and monitor the activity of individual neurons (nerve cells) in living tissue.
• Mechanism: The scientists discovered light-sensitive proteins (called channelrhodopsins) in microscopic algae. By transferring the genetic code for these proteins into mammalian nerve cells, the cells become sensitive to light.
• Action: When a specific wavelength of light (like blue light) is shone through an optical fibre, these protein channels open, allowing ions to flow in and instantly trigger or block an electrical nerve signal.

Medical & Neurological Applications

• Brain Mapping: It acts as a "molecular switch," allowing researchers to map neural circuits precisely and understand how specific neurons control memory, emotions, and behaviour.
• Disease Treatment: Lays the foundation for potential treatments for severe neurological and psychiatric conditions, including Alzheimer's, Parkinson's, schizophrenia, depression, and addiction.
• Vision Restoration: The method is actively being researched in clinical medicine to restore sight in people with visual impairments by introducing these light-sensitive proteins into the retina.

3.The Tamil Nadu Government has mandated a paperless (digital) registration system for select property documents starting November 2, 202

E-Governance in Tamil Nadu :

• Governing Project: Implemented under Phase-2 of the STAR 3.0 (Simplified and Transparent Administration of Registration) project, an initiative by the Commercial Taxes and Registration Department.
• Applicable Documents: The paperless system is mandatory for four specific types of deeds:

1. Settlement Deed
2. Release Deed
3. Partition Deed
4. Cancellation of Settlement Deed

• Registration Process:
• Users must draft the document and upload supporting proofs on the online registration portal for electronic verification.
• In-person requirement: Parties must still physically appear before the Sub-Registrar solely for Aadhaar authentication and final procedures.
• Digital Delivery: Once registered, the digital copy of the document is sent directly to the user's online account, eliminating the need for physical paper handling, scanning, and manual archival.

4.AI companions and child safety

Core Issue & Governance Challenge

• Emerging Threat: Generative AI companion apps act as 24/7 emotional confidants for children, creating high risks of emotional dependence, psychological manipulation, and self-harm advice.
• Regulatory Gap: Existing central laws (IT Act 2000, POCSO Act 2012, and DPDP Act 2023) focus primarily on physical abuse, sexual exploitation, and financial cybercrime, leaving algorithmic psychological harm largely unaddressed.

Constitutional & Legal Framework

• Article 21: The Right to Life and Personal Liberty encompasses mental health, dignity, and digital privacy.
• Article 39(f) (DPSP): Directs the State to ensure children are given opportunities to develop in a healthy manner and in conditions of freedom and dignity.
• Digital Personal Data Protection (DPDP) Act, 2023 (Section 9): Prohibits behavioral tracking, targeted advertising, and processing of data that causes detrimental effects on children.

Tamil Nadu Context

• Tamil Nadu State Policy for Children (2021):
• One of the few state policies that explicitly incorporates safe digital access and cyber protection alongside mental well-being.
• Directs schools and local bodies to safeguard children from non-traditional digital vulnerabilities and screen-induced distress.
• Student Mental Health Initiatives:
• Mana Nala Kaavalar (மனநலக் காவலர்): School and college-level mental health initiatives and counseling support run by the Health and Family Welfare Department to identify early signs of emotional distress and isolation among youth.
• Tele-MANAS (14416): The 24/7 mental health helpline widely utilized across Tamil Nadu district hubs to address adolescent psychological crises.
• Cyber Awareness by TN Police:
• The Tamil Nadu Cyber Crime Wing conducts targeted cyber safety workshops across government and matriculation schools, focusing on responsible internet behavior, digital addiction, and reporting unsafe digital interactions.
• Institutional Safeguard:
• The Tamil Nadu State Commission for Protection of Child Rights (SCPCR) serves as the statutory watchdog to address emerging technological risks to child safety at the grassroots level.

4. Policy Takeaway

To safeguard children without stalling technological progress, governance must shift toward:

• Mandating crisis-detection and parental alerts in regional AI tools.
• Expanding school-level cyber wellness education beyond basic cyber fraud to cover algorithmic literacy and digital mental health.

5.Air Force Day: President, PM Modi lead nation in extending greetings to Indian Air Force personnel

Indian Air Force (IAF)

• Date Observed: October 8 (commemorating its official establishment on October 8, 1932).
• Motto: "Nabhaḥ Spr̥śaṁ Dīptam" (Touch the Sky with Glory) — taken from Chapter 11 of the Bhagavad Gita.
• Headquarters: New Delhi.
• First Indian Chief: Subroto Mukerjee (took charge as the first Chief of the Air Staff in 1954).
• Highest Rank: Marshal of the Indian Air Force (5-star rank, conferred only once — to Arjan Singh in 2002).

Constitutional & Administrative Context

• Supreme Commander: The President of India is the Supreme Commander of the Armed Forces under Article 53(2) of the Indian Constitution.
• Administrative Control: Falls under the Ministry of Defence (MoD), Government of India.

Key Operations & Military Exercises

• Exercise Tarang Shakti: India's largest multilateral air combat exercise, hosted to enhance interoperability with friendly foreign air forces.
• Historical Military Operations:
• Operation Meghdoot (1984): Capture of the Siachen Glacier.
• Operation Safed Sagar (1999): Joint air support during the Kargil War.
• Operation Cactus (1988): Neutralized a coup attempt in the Maldives.
• HADR (Humanitarian Assistance & Disaster Relief): Air evacuations during crises such as Operation Rahat (Yemen, 2015 / Uttarakhand floods, 2013), Operation Ganga (Ukraine, 2022), and Operation Kaveri (Sudan, 2023).