Prelims Oriented
Director General of Civil Aviation (DGCA)

About DGCA
- Regulatory body in civil aviation primarily dealing with safety issues ensuring air transport security nationwide.
- Attached office of Ministry of Civil Aviation functioning under administrative control for policy implementation.
- Headquarters: New Delhi serving as central hub for civil aviation regulation in India.
Mandate
- Responsible for regulation of air transport services to/from/within India and enforcement of civil air regulations.
- Enforces air safety and airworthiness standards ensuring compliance by airlines and aircraft operators comprehensively.
- Coordinates regulatory functions with International Civil Aviation Organisation (ICAO) for global aviation standards alignment.
Functions and Responsibilities
- Safety Oversight
-
-
- Main function: ensure safety of passengers and crew members on all flights operating in India comprehensively.
- Investigates incidents/accidents within Indian airspace; takes appropriate action to prevent similar incidents in future ensuring accountability.
-
- Industry Development
- Crucial role in growth and development of Indian aviation industry working closely with airlines and airport operators.
- Plays crucial role in developing new airports, modernizing existing facilities ensuring they meet growing aviation demands effectively.
- Air Traffic Regulation
- Responsible for regulation of air traffic in India; works closely with Airports Authority of India (AAI) ensuring coordination.
- Ensures air traffic managed safely and efficiently across Indian airspace preventing congestion and accidents comprehensively.
- Licensing and Certification
- Issues licenses and certificates to pilots, aircraft maintenance engineers, and other aviation personnel ensuring qualified workforce.
Repo Rate

Meaning of the Repo Mechanism
- The Repo Rate, or Repurchase Agreement Rate, denotes the interest charged by the central bank when commercial banks borrow short-term funds.
- It enables banks to address temporary liquidity shortages by pledging securities and agreeing to repurchase them later at an interest-inclusive price.
How Repo Adjustments Influence Borrowing
- When repo rates rise, banks face higher borrowing costs, prompting them to raise lending rates, which dampens loans to households and businesses.
- A lower repo rate makes credit cheaper for banks, leading to reduced EMIs, increased borrowing, and stronger consumption demand.
Repo Rate as a Tool of Monetary Regulation
- The repo instrument allows the central bank to modulate money supply, steer inflation dynamics, and stabilise overall economic activity.
- It influences the cost of funds across the financial system and shapes lending behaviour.
Consequences of a Repo Rate Reduction
- Growth Momentum
-
-
- Reduced interest costs facilitate business expansion, capital investment, and employment generation.
- Affordable credit boosts consumer spending and production across sectors.
-
- Financial Market Behaviour
-
- Lower deposit returns may shift household savings towards stocks, mutual funds, or real estate, affecting capital allocation patterns.
- Currency and Trade Effects
-
- A lower repo rate may diminish investment returns, potentially causing capital outflows, weakening the currency, and raising import prices.
- A softer currency can enhance export competitiveness.
- Inflationary Pressure
-
- Increased borrowing and consumption can elevate prices, risking a breach of the 4% inflation anchor, with a permissible ±2% band.
Evolution of India’s 4% Inflation Benchmark
- Chakravarty Committee Insights (1982–85)
-
- Established under RBI Governor Manmohan Singh and chaired by Sukhamoy Chakravarty.
- It emphasised price stability as central to monetary policy.
- Proposed 4% average WPI inflation as a balanced long-term target.
- Called for market-based government borrowing, an active securities market, and monetary targeting (M3) for inflation control.
- M3 = M1 (currency with public + demand deposits) + net time deposits.
- Urjit Patel Committee (2014)
-
- Institutionalised flexible inflation targeting, endorsing the 4% ±2% band originally proposed by the Chakravarty Committee.
- Its recommendations shaped the 2016 inflation-targeting framework, aligning India with global monetary norms.
Monetary Policy Committee (MPC)

Understanding Monetary Policy
- Monetary policy refers to the central bank’s use of interest rates, money supply tools, and credit regulations to influence economic activity.
- Under the Reserve Bank of India Act, 1934, the RBI is legally empowered to frame and conduct monetary policy.
- Its foremost objective is to ensure price stability, while also supporting economic growth.
- Price stability is viewed as essential for achieving sustained long-term expansion.
Evolution of India’s Inflation Targeting Framework
- In May 2016, the RBI Act was amended to give a statutory basis to the flexible inflation targeting system.
- The inflation target is finalized by the Government of India in consultation with the RBI, once every five years.
- This framework guides monetary policy by providing a numerical anchor for inflation expectations.
Role and Mandate of the Monetary Policy Committee
- The Monetary Policy Committee (MPC), established under Section 45ZB of the amended RBI Act, determines the policy interest rate needed to achieve the inflation target.
- Its central function is to set the benchmark repo rate, ensuring inflation remains within the prescribed band.
- The MPC replaced the earlier Technical Advisory Committee, creating a more structured decision-making mechanism.
Composition and Decision-Making Structure
- The MPC consists of six members:
- The RBI Governor (Chairperson).
- The Deputy Governor responsible for monetary policy.
- One RBI Board nominee.
- Three external members nominated by the Central Government.
- External members serve a four-year term.
- The quorum requires at least four members, including the Governor or, in his absence, the Deputy Governor.
- Decisions are based on majority voting; in the event of a tie, the Governor exercises a casting vote.
- MPC decisions are binding on the RBI and guide monetary operations.
- The Monetary Policy Department (MPD) of the RBI provides analytical support for policy formulation.
- The MPC must convene a minimum of four times annually.
Open Market Operations (OMO)

Context: RBI announced OMO purchases of ₹1 lakh crore G-Secs and $5 billion USD-INR swap this month for liquidity injection; Governor Malhotra says tariffs’ impact minimal.
Open Market Operations (OMO)
- Meaning and Purpose
-
- Open Market Operations (OMOs) refer to the central bank’s sale or purchase of government securities in the open market.
- They serve as a key monetary policy instrument for regulating money supply, liquidity, and inflation in the economy.
- The Reserve Bank of India (RBI) conducts OMOs to manage rupee liquidity on a durable and long-term basis.
How OMOs Function
- OMO – Sale of Government Securities
-
- RBI sells securities when it assesses excess liquidity in the financial system.
- Sale of securities withdraws money from circulation, reducing banking system liquidity.
- Lower liquidity pushes interest rates upward, making borrowing costlier for businesses and households.
- Higher interest rates slow economic activity by discouraging credit growth.
- Bond market impact: Increased supply of government securities raises bond yields, as investors demand higher returns.
- OMO – Purchase of Government Securities
-
- When liquidity is tight, RBI purchases government securities from banks and market participants.
- This injects funds into the economy and increases liquidity.
- Additional liquidity lowers interest rates, making loans cheaper for consumers and firms.
- Lower borrowing costs stimulate investment and consumption, supporting economic expansion.
Significance for Monetary Policy
- OMOs help RBI maintain price stability by controlling inflation through liquidity management.
- They support smooth functioning of financial markets by modulating liquidity shocks.
- OMOs influence bond yields, credit conditions, and investment climate, shaping broader macroeconomic outcomes.
Foreign Institutional Investors (FIIs)

Context: Foreign institutional investors are showing renewed interest in Indian markets with $414 million inflow (six-month high) as US flows lose steam, and focus shifts to emerging markets.
Foreign Institutional Investors (FIIs)
- FIIs constitute a category within Foreign Portfolio Investors comprising large global institutional entities.
- These include mutual funds, pension funds, insurance companies, hedge funds, and similar institutions.
- They follow structured, research-driven investment strategies in foreign markets, supplying long-term capital.
- Their inflows strengthen emerging economies, while sudden withdrawals can destabilise financial markets.
- Hence, FIIs remain subject to strong regulatory oversight to preserve macro-financial stability.
Regulatory Architecture in India
- FIIs are governed primarily under FEMA, 1999, and SEBI’s FPI Regulations.
- The RBI supervises sector-wise foreign investment limits and monitors compliance daily.
- The framework ensures transparency, market discipline, and controlled exposure to foreign capital.
Investment Limits and Eligibility Rules
- A single FII may invest up to 10% equity in one Indian company.
- Combined FII/NRI/PIO holdings are capped at 24%, unless raised by shareholders.
- Eligible entities include university endowment funds, charitable trusts, and long-standing institutional organisations.
- FIIs may deploy proprietary capital and also invest in unlisted securities within permitted norms.
Macroeconomic Factors Influencing FII Flows
- Increased FII participation recently correlates with a weaker U.S. Dollar Index, falling from 104–105 to around 99–100.
- A softer dollar improves the relative strength of the rupee, attracting foreign investors.
- The RBI’s stable policy stance and macroeconomic resilience boosted FII interest in banking and financial services.
- Conversely, FIIs reduced exposure to IT sectors due to concerns over a possible U.S. slowdown affecting tech revenues.
Digital Hub for Reference and Unique Virtual Address (DHRUVA)

Overview of DHRUVA
- DHRUVA is a national-level Digital Address Digital Public Infrastructure (DPI) designed to standardise, digitise, and virtualise physical addresses.
- It introduces a UPI-style addressing system, allowing citizens to share address “labels” such as name@entity instead of full physical addresses.
- The initiative is proposed through a draft amendment released by the Department of Posts in 2025.
- It expands upon the existing DIGIPIN digital geocoding framework.
Objectives
- To build a unified, interoperable, and secure digital address ecosystem for India.
- To treat address-data management as a core public infrastructure, similar to Aadhaar, UPI, and DigiLocker.
- To enable Address-as-a-Service (AaaS) for government agencies, businesses, and citizens.
- To support seamless address sharing for delivery, verification, and governance services.
Key Features
- UPI-like Address Labels
-
- Each user receives a virtual address handle (e.g., name@entity) acting as a digital proxy for their physical location.
- Eliminates repeated entry of full addresses across services.
- Consent-Based Data Access
-
- Organisations may access a user’s geocoded or textual address only after explicit, time-limited consent.
- Ensures strong privacy and data-protection safeguards.
- DIGIPIN Backbone
-
- DIGIPIN is a 10-character alphanumeric geocode representing latitude–longitude.
- It maps every 14 sq. metre unit of India, generating ~228 billion unique address points.
- It is open-sourced, with high accuracy for rural and unmapped regions.
- AaaS Architecture
-
- Provides secure APIs enabling integration of verified address data with logistics, e-commerce, fintech, and government platforms.
- Widens adoption across public and private sectors.
- Institutional Framework
-
- A Section 8 not-for-profit entity, similar to NPCI, will govern DHRUVA.
- Address Service Providers (ASPs) will issue virtual labels.
- Address Information Agents (AIAs) will manage user consent and authorisation workflows.
- Interoperability & Stakeholder Participation
- The system is voluntary, encouraging participation by gig platforms, e-commerce companies, fintech networks, and logistics providers.
- Designed to create a nationally consistent addressing standard for governance, service delivery, and commerce.
Vultures

Context
- BNHS will release six critically endangered vultures—slender-billed and white-rumped—in Assam in January 2026.
- The initiative is part of India’s long-term vulture population recovery strategy.
Slender-billed Vulture (Gyps tenuirostris)
- Profile
-
- A critically endangered Old World vulture once widely distributed in South Asia.
- Survives today in fragmented habitats across Assam, Gangetic plains, Nepal, Bangladesh, Myanmar, and Cambodia.
- Prefers tall nesting trees near settlements, slaughterhouses, and riverine ecosystems.
- Status & Traits
-
- IUCN Status: Critically Endangered with fewer than ~870 mature individuals.
- Characterised by a narrow bill, long bare neck, grey body, and pale rump.
- Wingspan ranges from 196–258 cm with body length between 80–95 cm.
- Breeds slowly, producing only one egg per year; feeds mainly on carrion.
White-rumped Vulture (Gyps bengalensis)
- Profile
-
- Once extremely common across India, now among the world’s fastest-declining birds.
- Nests on large trees or cliffs, frequently roosting near human habitation.
- Status & Traits
-
- IUCN Status: Critically Endangered due to diclofenac-contaminated livestock carcasses.
- Displays a white neck ruff, dark plumage, and a prominent white rump patch.
- Wingspan measures 180–210 cm, with weight reaching up to 7.5 kg.
- Breeds between October and March, laying a single thick-shelled egg.
- Feeds in mixed scavenger groups, relying heavily on carcass availability.
AstroSat is India’s first dedicated multi-wavelength astronomy satellite

About AstroSat
- AstroSat is India’s first dedicated multi-wavelength astronomy satellite, enabling simultaneous observations in UV, optical, soft X-ray and hard X-ray ranges.
- Launched in 2015 aboard PSLV-C30, it was placed in a 650 km orbit for long-duration astrophysical studies.
- Objective: To observe high-energy cosmic phenomena, study compact objects, map stellar evolution processes, and generate publicly accessible astronomical data.
- Payload Suite:
- Five scientific instruments covering 0.3–100 keV and UV wavelengths, allowing integrated spectral analysis.
- Unique capability for simultaneous multi-band observations, uncommon among global space observatories.
- Technical Features:
- High pointing accuracy and stable attitude control allow extended exposure times.
- Mission operations handled by ISTRAC, Bengaluru; data archived at ISSDC, Bylalu.
- Mission Life: Designed for 5 years, yet has significantly exceeded its intended lifespan, continuing to generate high-quality astrophysical data.
Ultra-Violet Imaging Telescope (UVIT)
- Overview
-
- UVIT is a dual-channel ultraviolet imaging telescope mounted on AstroSat, capable of observing in far-UV (FUV), near-UV (NUV) and visible bands.
- Marks India’s first UV space telescope, and globally, the second in FUV capability after the Hubble Space Telescope.
- Key Features
-
- Provides spatial resolution better than 1.5 arcseconds, placing it among the world’s most precise UV imagers.
- Comprises two co-aligned telescopes with FUV and NUV+Visible channels.
- Developed through a national collaboration coordinated by the Indian Institute of Astrophysics (IIA) with major ISRO centres.
- Scientific Significance
-
- Enabled major discoveries in stellar and galactic astrophysics, including:
- Detection of hot companions of Be stars.
- Identification of blue stragglers in clusters with high precision.
- Mapping of UV disks in dwarf galaxies and novae in Andromeda.
- Establishing correlations between AGN UV and X-ray emissions.
- Celebrated 10 years of successful operation, marking a decade of significant contributions to global space science.
- Enabled major discoveries in stellar and galactic astrophysics, including:

