AllABCDEFGHIJKLMNOPQRSTUVWXYZ C C. Rajagopalachari Definition: Congress leader and statesman.Prelims facts: Also called Rajaji; last Governor-General of India. Learn More → C.R. Das Definition: Nationalist leader from Bengal.Prelims facts: Founder of Swaraj Party; advocated council entry. Learn More → Cabinet Mission Definition: British plan for transfer of power.Year: 1946Prelims facts: Proposed three-tier federal structure. Learn More → Cabinet Mission Plan Plan proposed in 1946 by British Cabinet Mission to transfer power to Indians while keeping... Learn More → Calcium Carbide A colorless crystalline solid Used: Industrial Fuel, Steel Manufacturing, Artificial Ripening The FSSAI has strictly banned its use... Learn More → Calcium Oxide Definition: Quicklime; hygroscopic agent.PYQ: 2019 Learn More → Calcutta Session Definition: Indian National Congress session endorsing Swadeshi.Year: 1906Prelims facts: Presided by Dadabhai Naoroji; goal of... Learn More → Calderas Definition: Large volcanic depressions formed after collapse following massive eruptions.Prelims Pointers: Found in volcanic belts;... Learn More → Canyon Definition: Deep, narrow valley with steep sides carved by river erosion.Prelims Pointers: Formed in arid/semi-arid... Learn More → Capital Formation Definition: Capital formation refers to the creation of physical assets such as machinery, tools, and... Learn More → Carbonic Acid Definition: Weak acid formed by CO₂ and water.Prelims Pointers: Key agent of chemical weathering.PYQ: UPSC... Learn More → Carlsberg Ridge Definition: A mid-ocean ridge in the Indian Ocean.UPSC Pointers: Part of Central Indian Ridge system;... Learn More → Carlyle Circular Definition: Government circular threatening withdrawal of grants from schools involved in nationalist politics.Year: 1905Key facts:... Learn More → Cartaze Definition: A naval permit system introduced by the Portuguese in the Indian Ocean to control... Learn More → Cash Reserve Ratio Definition: The percentage of Net Demand and Time Liabilities (NDTL) that banks must maintain as... Learn More → Caves Definition: Natural underground hollows.Prelims Pointers: Karst regions.PYQ: UPSC Prelims 2018Current Affairs: Cave conservation. Learn More → Central Bank Digital Currency Definition: A digital form of sovereign currency issued by the RBI and recognized as legal... Learn More → CHACE-2 Definition: Mass spectrometer on Chandrayaan-2 orbiter.UPSC Traps: Studies lunar exosphere, not surface.Current Affairs: Data referenced... Learn More → Chaitya Definition: A Buddhist prayer hall or shrine, typically housing a stupa and used for congregational... Learn More → Chambal River Definition: Tributary of Yamuna.Prelims Pointers: Ravines and badlands.PYQ: UPSC Prelims 2019Current Affairs: River rejuvenation. Learn More → Champaran Satyagraha First Civil Disobedience: This was Gandhi’s first experiment with Satyagraha in India, invited by Rajkumar... Learn More → Chandrashekhar Azad Definition: Revolutionary leader.Prelims facts: Associated with HRA/HSRA; died in Alfred Park (1931). Learn More → Chanhudaro An industrial center located on the Indus River in Pakistan. Prelims Pointer: This is the only... Learn More → Charter Act 1813 Act that ended Company monopoly except tea and China trade.UPSC Traps: Promoted missionary activities; education... Learn More → Charter Act 1833 Act that centralized legislative power.UPSC Traps: Governor-General of Bengal became Governor-General of India. Learn More → Charter Act 1853 Act that ended Company’s trade monopoly and reformed administration.UPSC Traps: Introduced open competition for civil... Learn More → Chauri Chaura Definition: Violent incident during Non-Cooperation Movement.Year: 1922Prelims facts: Led to withdrawal of NCM. Learn More → Chauth Definition: One-fourth tax collected by Marathas from neighboring regions.• Time Period: 17th–18th century• UPSC Prelims... Learn More → Cherrapunji Definition: Second wettest place globally.PYQ: 2016 Learn More → Chicago Parliament of Religions Interfaith meet where Vivekananda spoke.UPSC: 1893, USA. Learn More → Chilika Lake Definition: Largest brackish water lagoon in India.Prelims Pointers: Odisha; Ramsar site.PYQ: UPSC Prelims 2020Current Affairs:... Learn More → Chinook Definition: Warm dry wind on leeward side of Rockies.Effect: Rapid snowmelt.PYQ: 2016 Learn More → Chittagong Armoury Raid Definition: Armed raid on British armouries.Year: 1930Prelims facts: Led by Surya Sen. Learn More → Circular Flow of Income Definition: The circular flow of income model shows how income and expenditure move between households... Learn More → Cirque Definition: Bowl-shaped hollow at head of glacial valley.Prelims Pointers: Birthplace of glaciers.PYQ: UPSC Prelims 2014Current... Learn More → Closed Economy Definition: A closed economy is one that does not engage in international trade or financial... Learn More → Cloud Seeding Definition: Artificial rain stimulation technique.PYQ: 2019 Learn More → Cloudburst Definition: Extreme rainfall (>100 mm/hr).PYQ: 2021 Learn More → Coal Definition: Fossil fuel formed from plant remains.Key Facts: Gondwana coalfields—Damodar valley.PYQ Year: 2017. Learn More → Columnar Basalt Definition: Basaltic lava flows forming hexagonal columns.Key Facts: Rapid cooling; seen in Deccan Traps.PYQ Year:... Learn More → Composite Volcanoes Definition: Steep-sided volcanoes built from alternating lava and ash layers.Prelims Pointers: Also called stratovolcanoes.PYQ: UPSC... Learn More → Composition Scheme Definition: A simplified GST scheme for small taxpayers allowing tax payment at a lower fixed... Learn More → Consolidated Fund of India Definition: The primary fund of the Government of India under Article 266 into which all... Learn More → Constellation Definition: A group of stars forming a recognizable pattern in the sky.• UPSC Pointers: 88... Learn More → Constituent Assembly Definition: A representative body formed to draft the Constitution of independent India.Key Prelims Pointers:• First... Learn More → Continental Crust Definition: Thick crust forming continents.• UPSC Pointers: Granitic; average thickness ~35 km. Learn More → Convectional Rainfall Definition: Rainfall due to intense surface heating.PYQ: 2013 Learn More → Convergent Plate Boundary Definition: Boundary where two tectonic plates move towards each other.Prelims Pointers: Causes mountains, trenches, volcanoes;... Learn More → Cooperative Federalism Definition: A governance approach where Centre and States work as equal partners in development.Key Points... Learn More → Coral Definition: Marine organisms forming reefs.Prelims Pointers: Coral bleaching.PYQ: UPSC Prelims 2017Current Affairs: Global bleaching events. Learn More → Load More