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Concept Library · GS

General Studies

Cross-cutting concepts that do not sit inside one paper. 32 concepts, each with its definition, key details and a timeline of every news story that touched it.

Balance of Payments (BoP)

In the news 19x

The Balance of Payments is a systematic record of all economic transactions between residents of a country and the rest of the world during a given period...

GST Council

In the news 12x

The GST Council is a constitutional body established under Article 279A of the Constitution (inserted by the 101st Constitutional Amendment, 2016). It is...

Operation Sindoor

In the news 12x

Operation Sindoor was India's military response to the Pahalgam terror attack of April 22, 2025, in which 26 civilians (mostly tourists) were killed in...

Left Wing Extremism (LWE) in India

In the news 11x

Left Wing Extremism, rooted in the 1967 Naxalbari uprising in West Bengal, has been India's longest-running internal security challenge. The CPI(Maoist)...

MSMED Act, 2006

In the news 10x

The Micro, Small and Medium Enterprises Development (MSMED) Act, 2006 contains specific provisions (Sections 15–17) obligating buyers to pay MSME suppliers...

SAMADHAN Strategy

In the news 9x

Introduced by the Ministry of Home Affairs in 2017, SAMADHAN is a comprehensive counter-insurgency framework that integrates security operations with...

Base Year Revision

In the news 8x

GDP base year revision involves recalculating national income accounts using a new reference year that better reflects the current structure of the economy....

NDPS Act, 1985

In the news 7x

The Narcotic Drugs and Psychotropic Substances (NDPS) Act, 1985 is the primary legislation governing drug offences in India.

CPI (Maoist)

In the news 6x

The Communist Party of India (Maoist) — commonly called the Naxalites — is a designated terrorist organisation under India's UAPA, representing the most...

Narcotics Control Bureau (NCB)

In the news 6x

The NCB is the apex central agency for drug law enforcement in India, established under the NDPS Act with effect from March 1986.

Project 17A

In the news 6x

Project 17A (P-17A) is a programme to build seven multi-mission stealth guided-missile frigates for the Indian Navy, approved by the Defence Acquisition...

Left-Wing Extremism (LWE) in India

In the news 5x

Left-Wing Extremism refers to the insurgency conducted primarily by CPI (Maoist) and affiliated organisations, often described as the single largest...

Line of Control (LoC)

In the news 5x

The Line of Control is not an internationally recognised boundary but a de facto ceasefire line between India and Pakistan, demarcated following the 1972...

CPI vs WPI

In the news 4x

India tracks inflation through two main indices: CPI (retail-level) and WPI (wholesale-level). They serve different purposes and are compiled by different...

Corporate Insolvency Resolution Process (CIRP)

In the news 4x

Understanding the CIRP flow is essential for both Prelims (MCQs on IBC provisions) and Mains (GS3 essays on NPA resolution, economic reforms).

India's Crude Oil Import Dependency

In the news 4x

India is the world's third-largest crude oil importer and second-largest LPG importer. West Asia (the Gulf region) supplies approximately 80–90% of India's...

India's LPG Import Dependence and Energy Vulnerability

In the news 4x

India imports approximately 60% of its LPG requirement, with 90% of those imports passing through the Strait of Hormuz from West Asian producers. This makes...

Insolvency and Bankruptcy Board of India (IBBI)

In the news 4x

The IBBI is the statutory regulatory body established under Section 188 of IBC, formally set up on October 1, 2016. It functions under the Ministry of...

Lashkar-e-Taiba (LeT)

In the news 4x

Lashkar-e-Taiba (Army of the Pure) is a Pakistan-based Islamist militant organisation founded in 1985–86 by Hafiz Muhammad Saeed with alleged ISI backing...

Left Wing Extremism (LWE) and the Red Corridor

In the news 4x

Left Wing Extremism in India refers to the armed Maoist/Naxalite insurgency, which originated in the Naxalbari uprising of 1967 in West Bengal. The CPI...

Maritime Security and Freedom of Navigation

In the news 4x

Under the United Nations Convention on the Law of the Sea (UNCLOS, 1982), ships of all states enjoy the right of transit passage through international...

SAMADHAN Doctrine

In the news 4x

Launched in 2017 by the Ministry of Home Affairs under then-Home Minister Rajnath Singh, SAMADHAN is a multi-pronged, acronym-based doctrine that integrates...

Advanced Medium Combat Aircraft (AMCA)

In the news 3x

The AMCA is India's indigenous fifth-generation stealth combat aircraft being developed by the Aeronautical Development Agency (ADA) under DRDO, with HAL as...

Essential Commodities Act (ECA), 1955

In the news 3x

The ECA empowers the central government to control production, supply, distribution, and trade of certain commodities declared 'essential' in order to...

Government's Counter-LWE Strategy

In the news 3x

The Union government's anti-Naxal strategy rests on three pillars working in tandem: (1) Security Operations: CRPF's CoBRA (Commando Battalion for Resolute...

India's Defence Procurement Process

In the news 3x

India's defence procurement is governed by the Defence Acquisition Procedure (DAP), revised in 2020 (replacing DPP — Defence Procurement Procedure). The DAP...

India's Petroleum Sector

In the news 3x

The downstream petroleum sector — covering refining, storage, and distribution of petroleum products — is regulated by the Petroleum and Natural Gas...

Integrated Theatre Commands

In the news 3x

Theatre commands (or Integrated Theatre Commands — ITCs) are unified operational structures where assets of Army, Navy, and Air Force operate under a single...

Left Wing Extremism

In the news 3x

The Red Corridor refers to the contiguous belt of LWE-affected territory that once stretched across central and eastern India. At its peak, it covered...

Operation Sindoor (May 2025)

In the news 3x

Operation Sindoor was launched on 7 May 2025 in response to the Pahalgam terror attack of 22 April 2025, in which 26 civilians (mostly tourists) were killed...

Special Additional Excise Duty (SAED)

In the news 3x

The Special Additional Excise Duty (SAED) is a form of excise levy that can be selectively applied to specific categories of goods. For petroleum products...

UNCLOS and Transit Passage Rights

In the news 3x

The United Nations Convention on the Law of the Sea (UNCLOS, 1982) establishes that straits used for international navigation are subject to the right of...

These concepts move with the news. The daily brief explains each one in the story where it appears.
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