Static GS
Notes on GS topics which are static and difficult to find in Books.
NavIC vs GPS: India's Satellite Navigation System and Its Strategic Value
NavIC (Navigation with Indian Constellation), formerly IRNSS, is ISRO's regional satellite navigation system covering India and an area extending about 1,500 km beyond its borders. It offers an open Standard Positioning β¦
In-Space Privatization: India's New Space Policy and the IN-SPACe Ecosystem
India's space sector reforms have created a four-pillar structure: the Department of Space (DoS) for policy oversight, ISRO for research and exploration, NewSpace India Limited (NSIL) as the commercial arm, and IN-SPACe β¦
DRDO's Integrated Guided Missile Development Programme (IGMDP): Genesis and Legacy
IGMDP was approved in 1983 with the goal of developing five missile systems β Prithvi, Agni, Akash, Trishul, and Nag β covering surface-to-surface, anti-aircraft, and anti-tank roles. The programme aimed to build indigenβ¦
Zero Budget Natural Farming (ZBNF): Principles and the Andhra Pradesh Model
ZBNF rests on four interlinked practices β Jeevamrutham, Beejamrutham, Acchadana (mulching), and Whapasa (soil aeration/moisture management) β aimed at restoring soil microbial health without synthetic fertilisers or pesβ¦
Jain Philosophical Categories: Syadvada and Anekantavada
Anekantavada holds that reality is complex and many-faceted; no single viewpoint can capture the whole truth about any object. Syadvada is the logical expression of this principle β every statement about reality must be β¦
Buddhist Philosophical Schools: Theravada, Madhyamika, and Yogachara
Theravada ('Way of the Elders') is the oldest surviving school, adhering closely to the Pali Canon. Madhyamika, founded by Nagarjuna (c. 2nd century CE), argues that all phenomena are empty of inherent existence (Shunyatβ¦
Micro-Irrigation and the Pradhan Mantri Krishi Sinchayee Yojana (PMKSY)
Agriculture consumes the bulk of India's freshwater - roughly four-fifths - yet much of it is lost through inefficient flood irrigation even as groundwater tables fall. Micro-irrigation, comprising drip and sprinkler sysβ¦
Agricultural Commodity Futures and the SEBIβFMC Merger β Derivatives, Price Discovery and Regulation
A commodity future is a standardised, exchange-traded contract to buy or sell a fixed quantity of a commodity at a pre-agreed price on a future date. For agriculture, such derivatives are meant to perform two economic fuβ¦
Buffer Stocks and Strategic Grain Reserves β Food Inflation Management
To guarantee food security and stabilise prices, the government, through the Food Corporation of India (FCI), procures foodgrains at the Minimum Support Price (MSP) and holds them in a 'central pool'. These stocks serve β¦
National Food Security Act, 2013 β Coverage, Entitlements and Exclusion Errors
The National Food Security Act (NFSA), 2013 transformed access to subsidised foodgrains from a welfare scheme into a justiciable legal right. Covering about two-thirds of India's population, it is the legal backbone of tβ¦
Charvaka (Lokayata) β Materialism and Atheism in Ancient India
Charvaka holds that only the physical, material world exists. The four material elements β earth (prithvi), water (jala), fire (agni), and air (vayu) β are the ultimate constituents of reality. There is no fifth element β¦
Impact of Globalisation on Indian Family Structure and Kinship
Globalisation β the accelerated integration of economies, cultures, and societies through trade, technology, and migration β has profoundly reshaped the institution of the family in India. The Indian family, traditionallβ¦
Cultural Homogenisation vs. Glocalisation
One of the most contested debates in contemporary social science concerns the cultural consequences of globalisation. Two opposing theoretical frameworks have emerged: cultural homogenisation β the view that globalisatioβ¦
Factors of Industrial Location β Weber's Least-Cost Theory
Industrial location β the question of why factories and industries are established in specific places β is one of the central problems of Economic Geography. Alfred Weber, a German economist-geographer, formulated the fiβ¦
Constitutional Secularism vs. Western Secularism β Rajeev Bhargava's Framework
Secularism is one of the foundational principles of the Indian Constitution β listed in the Preamble as one of the four qualities of the Indian republic (alongside Sovereign, Socialist, and Democratic). However, Indian sβ¦
Communalism as an Ideology β Historical Roots and Political Instrumentalisation
Communalism is one of the most persistent and destabilising forces in Indian social and political life. As an ideology, communalism holds that people of a particular religious community share common political, economic, β¦
Special Economic Zones (SEZs) β Global Models vs. India's SEZ Policy
A Special Economic Zone (SEZ) is a geographically demarcated area within a country that operates under a distinct economic and regulatory framework from the rest of the country. The primary objective of an SEZ is to attrβ¦
The Vietnam War: Domino Theory, Tet Offensive, and Paris Peace Accords
Brief Introduction The Vietnam War (1955β1975) was one of the most consequential conflicts of the Cold War era, drawing the United States into a prolonged military engagement in Southeast Asia. Rooted in the ideological β¦
German and Italian Unification: Bismarck's Realpolitik and Cavour's Diplomacy
Brief Introduction The mid-19th century witnessed two of the most consequential nation-building projects in European history β the unification of Italy (1861) and Germany (1871). Both were achieved not through popular reβ¦
Second Industrial Revolution
Brief Introduction The Second Industrial Revolution, spanning roughly from the 1870s to the outbreak of World War I (1914), was a phase of rapid industrial and technological transformation that fundamentally reshaped ecoβ¦
El NiΓ±oβSouthern Oscillation (ENSO) and Indian Monsoon Linkage
Brief Introduction El NiΓ±oβSouthern Oscillation (ENSO) is the most powerful naturally occurring climate phenomenon on Earth, originating in the tropical Pacific Ocean but influencing weather patterns across the globe β iβ¦
Indian Ocean Dipole (IOD) and Its Effects on Indian Climate
The Indian Ocean Dipole (IOD), sometimes called the "Indian NiΓ±o", is a coupled ocean-atmosphere interaction in the Indian Ocean that involves a cyclical fluctuation in sea surface temperatures (SSTs) between the westernβ¦
Jet Streams, Western Disturbances and Their Role in Indian Weather
Jet streams are fast-moving, narrow bands of wind found in the upper troposphere (approximately 8β15 km altitude), blowing predominantly from west to east. They are not uniform currents but meander in great waves β the Rβ¦
Ocean Floor Features: Mid-Ocean Ridges, Seamounts & Abyssal Plains
The ocean floor, covering nearly 71% of the Earth's surface, is far from a uniform, flat landscape. It harbours some of the planet's most dramatic geological features β including towering underwater mountain chains (mid-β¦
Glacial Landforms: Cirques, Drumlins, Eskers and Their Spatial Distribution
Glacial geomorphology is the study of landscapes shaped by the erosional, transportational, and depositional work of glaciers β massive bodies of compacted ice that move under their own weight. Glaciers have been among tβ¦
The Cuban Missile Crisis (1962): Nuclear Brinkmanship and Resolution
Brief Introduction The Cuban Missile Crisis of October 1962 stands as the most dangerous episode of the Cold War β a 13-day confrontation between the United States and the Soviet Union that brought humanity to the brink β¦
Fascist Ideology: Corporatism, Ultranationalism, and Social Darwinism
Brief Introduction Fascism was the dominant authoritarian political ideology that swept through Europe in the interwar period (1919β1939). Emerging primarily in Italy under Benito Mussolini and Germany under Adolf Hitlerβ¦
Thermohaline Circulation: The Global Ocean Conveyor Belt and Climate Regulation
Thermohaline circulation (THC), popularly known as the 'Global Ocean Conveyor Belt,' is a planetary-scale system of ocean currents driven by differences in temperature (thermo) and salinity (haline) β the two factors thaβ¦
Karst Topography: Formation Processes and Hydrological Implications
Karst topography refers to a distinctive landscape created by the chemical dissolution (solutional weathering) of soluble rocks β primarily limestone (calcium carbonate), but also dolomite, gypsum, and halite. The term 'β¦
Korean War (1950-1953): Causes, UN Intervention, China's Entry, Armistice and Cold War Significance
Brief Introduction The Korean War (June 1950 -- July 1953) was the first major armed conflict of the Cold War era and the world's first significant test of collective security under the United Nations. Often called the "β¦
Pan-Africanism and the OAU: Ideology, Key Thinkers, Formation of the Organisation of African Unity (1963)
Brief Introduction Pan-Africanism is one of the most powerful ideological movements of the 20th century -- a vision of African solidarity, self-determination, and collective liberation that transcended national and contiβ¦
Linguistic Reorganisation of States: States Reorganisation Act, 1956 and Its Controversies
Brief Introduction The reorganisation of Indian states on linguistic lines is one of the most significant administrative and political events of post-independence India. The States Reorganisation Act (SRA), 1956 -- enactβ¦
Indian National Army (Azad Hind Fauj): Role, Trials, and Public Response
The Indian National Army (INA), also known as Azad Hind Fauj, was a military force formed during World War II with the primary objective of overthrowing British colonial rule in India through armed struggle. Reorganised β¦
Prarthana Samaj and Paramahansa Mandali: Maharashtra's 19th-Century Reform Context
Maharashtra's 19th-century social reform history is characterised by a remarkable succession of organisations, each building on the intellectual legacies of its predecessors. Two pioneering bodies β the Paramahansa Mandaβ¦
Satya Shodhak Samaj and Jyotirao Phule: Caste Critique and OBC Assertion
Founded by Jyotirao Govindrao Phule on 24 September 1873, the Satya Shodhak Samaj (Society of Truth Seekers) was one of the most radical social reform movements of 19th-century India. Unlike Brahmo Samaj or Arya Samaj β β¦
Colonial-Era Nationalist Newspapers: Amrita Bazar Patrika, Kesari, The Hindu, The Tribune
The colonial-era press in India was not merely a medium of information β it was the central arena of political thought, nationalist mobilisation, and public opinion formation. Long before political parties, mass movementβ¦
Vernacular Press Act, 1878 β Colonial Control of the Indian Press
The Vernacular Press Act (VPA) of 1878, enacted under Viceroy Lord Lytton's administration, was one of the most controversial pieces of colonial legislation in Indian history. Popularly called the 'Gagging Act' by its crβ¦
Ghadar Movement: Overseas Indians and the Blueprint for Armed Revolt
The Ghadar Movement (1913β1914) was a revolutionary nationalist movement organised primarily by Indian immigrants settled in North America and Southeast Asia. Centred around the Ghadar Party founded in San Francisco in 1β¦
Abhinav Bharat Society and V.D. Savarkar
Abhinav Bharat Society, founded in 1904 by Vinayak Damodar Savarkar and his elder brother Ganesh Damodar Savarkar, was one of India's first organised revolutionary secret societies. Operating initially from Pune and lateβ¦
Anushilan Samiti and Jugantar
The Anushilan Samiti and its breakaway faction Jugantar were the two principal revolutionary secret societies active in Bengal in the early 20th century. Emerging in response to the Partition of Bengal (1905) and the perβ¦
HSRA and Bhagat Singh
The Hindustan Socialist Republican Association (HSRA), and its predecessor the Hindustan Republican Association (HRA), represented the most ideologically sophisticated phase of revolutionary nationalism in India during tβ¦
Indigo Revolt (1859β60) & Pabna Agrarian League
The Indigo Revolt (Neel Bidroha, 1859β60) and the Pabna Agrarian League (1873β76) were two landmark agrarian resistance movements in colonial Bengal that challenged exploitative economic structures imposed by British rulβ¦
Munda Ulgulan (1899β1900) β Birsa Munda Movement
The Munda Ulgulan (literally 'Great Tumult' or 'Revolution') was one of the most significant tribal uprisings in Indian history, led by Birsa Munda between 1899 and 1900 in the Chotanagpur region of pβ¦
Schools of Indian Miniature Painting
Miniature painting is a tradition of small-scale, intricate painting executed on paper, cloth, or ivory, characterized by fine brushwork, vivid natural pigments, and extraordinary attention to detail. In India, this tradβ¦
Mimamsa & Advaita Vedanta β Ritual Philosophy vs. Non-Dualism
Purva Mimamsa, founded by Jaimini, insists that the Vedas are self-authoritative, eternal, and unauthored (apaurusheya). It argues that dharma, constituted by Vedic injunctions (vidhi), is the highest authority, and thatβ¦
Indian Martial Art Forms: Kalaripayattu, Thang-ta, Gatka, and Silambam
India's martial art traditions are among the oldest in the world, each evolving within specific geographical, cultural, and socio-political contexts. While the term 'martial arts' is today commonly associated with East Aβ¦
Nagara Temple Architecture
Nagara architecture, also referred to as the North Indian style of temple architecture, is one of three classical traditions of Hindu temple building in India, the others being Dravida (South Indian) and Vesara (hybrid/Dβ¦
Peasant & Tribal Revolts (Pre-1857): The Santhal Rebellion (1855β56) β Hool
The Santhal Rebellion of 1855β56, known to the Santhal people as 'Hool' (meaning revolution or uprising in Santhali), was one of the most significant pre-1857 tribal revolts in Indian history. The Santhals β anβ¦
Classical Music Theory: Raga Classification β Melakarta and Thaat Systems
Indian classical music, one of the oldest living musical traditions in the world, is built on the concept of the Raga Γ’ΒΒ a melodic framework that prescribes specific notes, their sequence, and emotive character. To brinβ¦
Classical Music Theory: Gharana System and Lineage in Hindustani Music
Brief Introduction The Gharana system is one of the most distinctive features of Hindustani classical music, representing a tradition of hereditary musical transmission through disciplic lineages. The word 'gharana' deriβ¦