C
C. Rajagopalachari

Definition: Congress leader and statesman.Prelims facts: Also called Rajaji; last Governor-General of India.

C.R. Das

Definition: Nationalist leader from Bengal.Prelims facts: Founder of Swaraj Party; advocated council entry.

Cabinet Mission

Definition: British plan for transfer of power.Year: 1946Prelims facts: Proposed three-tier federal structure.

Cabinet Mission Plan

Plan proposed in 1946 by British Cabinet Mission to transfer power to Indians while keeping...

Calcium Carbide

A colorless crystalline solid Used: Industrial Fuel, Steel Manufacturing, Artificial Ripening The FSSAI has strictly banned its use...

Calcium Oxide

Definition: Quicklime; hygroscopic agent.PYQ: 2019

Calcutta Session

Definition: Indian National Congress session endorsing Swadeshi.Year: 1906Prelims facts: Presided by Dadabhai Naoroji; goal of...

Calderas

Definition: Large volcanic depressions formed after collapse following massive eruptions.Prelims Pointers: Found in volcanic belts;...

Canyon

Definition: Deep, narrow valley with steep sides carved by river erosion.Prelims Pointers: Formed in arid/semi-arid...

Capital Formation

Definition: Capital formation refers to the creation of physical assets such as machinery, tools, and...

Carbonic Acid

Definition: Weak acid formed by CO₂ and water.Prelims Pointers: Key agent of chemical weathering.PYQ: UPSC...

Carlsberg Ridge

Definition: A mid-ocean ridge in the Indian Ocean.UPSC Pointers: Part of Central Indian Ridge system;...

Carlyle Circular

Definition: Government circular threatening withdrawal of grants from schools involved in nationalist politics.Year: 1905Key facts:...

Cartaze

Definition: A naval permit system introduced by the Portuguese in the Indian Ocean to control...

Cash Reserve Ratio

Definition: The percentage of Net Demand and Time Liabilities (NDTL) that banks must maintain as...

Caves

Definition: Natural underground hollows.Prelims Pointers: Karst regions.PYQ: UPSC Prelims 2018Current Affairs: Cave conservation.

Central Bank Digital Currency

Definition: A digital form of sovereign currency issued by the RBI and recognized as legal...

CHACE-2

Definition: Mass spectrometer on Chandrayaan-2 orbiter.UPSC Traps: Studies lunar exosphere, not surface.Current Affairs: Data referenced...

Chaitya

Definition: A Buddhist prayer hall or shrine, typically housing a stupa and used for congregational...

Chambal River

Definition: Tributary of Yamuna.Prelims Pointers: Ravines and badlands.PYQ: UPSC Prelims 2019Current Affairs: River rejuvenation.

Champaran Satyagraha

First Civil Disobedience: This was Gandhi’s first experiment with Satyagraha in India, invited by Rajkumar...

Chandrashekhar Azad

Definition: Revolutionary leader.Prelims facts: Associated with HRA/HSRA; died in Alfred Park (1931).

Chanhudaro

An industrial center located on the Indus River in Pakistan. Prelims Pointer: This is the only...

Charter Act 1813

Act that ended Company monopoly except tea and China trade.UPSC Traps: Promoted missionary activities; education...

Charter Act 1833

Act that centralized legislative power.UPSC Traps: Governor-General of Bengal became Governor-General of India.

Charter Act 1853

Act that ended Company’s trade monopoly and reformed administration.UPSC Traps: Introduced open competition for civil...

Chauri Chaura

Definition: Violent incident during Non-Cooperation Movement.Year: 1922Prelims facts: Led to withdrawal of NCM.

Chauth

Definition: One-fourth tax collected by Marathas from neighboring regions.• Time Period: 17th–18th century• UPSC Prelims...

Cherrapunji

Definition: Second wettest place globally.PYQ: 2016

Chicago Parliament of Religions

Interfaith meet where Vivekananda spoke.UPSC: 1893, USA.

Chilika Lake

Definition: Largest brackish water lagoon in India.Prelims Pointers: Odisha; Ramsar site.PYQ: UPSC Prelims 2020Current Affairs:...

Chinook

Definition: Warm dry wind on leeward side of Rockies.Effect: Rapid snowmelt.PYQ: 2016

Chittagong Armoury Raid

Definition: Armed raid on British armouries.Year: 1930Prelims facts: Led by Surya Sen.

Circular Flow of Income

Definition: The circular flow of income model shows how income and expenditure move between households...

Cirque

Definition: Bowl-shaped hollow at head of glacial valley.Prelims Pointers: Birthplace of glaciers.PYQ: UPSC Prelims 2014Current...

Closed Economy

Definition: A closed economy is one that does not engage in international trade or financial...

Cloud Seeding

Definition: Artificial rain stimulation technique.PYQ: 2019

Cloudburst

Definition: Extreme rainfall (>100 mm/hr).PYQ: 2021

Coal

Definition: Fossil fuel formed from plant remains.Key Facts: Gondwana coalfields—Damodar valley.PYQ Year: 2017.

Columnar Basalt

Definition: Basaltic lava flows forming hexagonal columns.Key Facts: Rapid cooling; seen in Deccan Traps.PYQ Year:...

Composite Volcanoes

Definition: Steep-sided volcanoes built from alternating lava and ash layers.Prelims Pointers: Also called stratovolcanoes.PYQ: UPSC...

Composition Scheme

Definition: A simplified GST scheme for small taxpayers allowing tax payment at a lower fixed...

Consolidated Fund of India

Definition: The primary fund of the Government of India under Article 266 into which all...

Constellation

Definition: A group of stars forming a recognizable pattern in the sky.• UPSC Pointers: 88...

Constituent Assembly

Definition: A representative body formed to draft the Constitution of independent India.Key Prelims Pointers:• First...

Continental Crust

Definition: Thick crust forming continents.• UPSC Pointers: Granitic; average thickness ~35 km.

Convectional Rainfall

Definition: Rainfall due to intense surface heating.PYQ: 2013

Convergent Plate Boundary

Definition: Boundary where two tectonic plates move towards each other.Prelims Pointers: Causes mountains, trenches, volcanoes;...

Cooperative Federalism

Definition: A governance approach where Centre and States work as equal partners in development.Key Points...

Coral

Definition: Marine organisms forming reefs.Prelims Pointers: Coral bleaching.PYQ: UPSC Prelims 2017Current Affairs: Global bleaching events.

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