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Ilbert Bill Controversy

1883 controversy over allowing Indian judges to try European offenders.UPSC Pointers: Exposed racial arrogance of...

INA Trials

Definition: Trial of Indian National Army officers.Year: 1945Prelims facts: Conducted at Red Fort; aroused massive...

Inam Commission

Commission set up to investigate rent-free land grants.UPSC Traps: Associated with annexations under Dalhousie.

Inclusive Growth

Definition: Growth strategy ensuring benefits reach all sections of society.Key Points for Prelims:• Theme of...

Incremental Capital Output Ratio

Definition: Incremental Capital Output Ratio (ICOR) measures the additional capital required to produce an additional...

Indian Association of Calcutta

Founded in 1876 by Surendranath Banerjea and Ananda Mohan Bose.UPSC Pointers: Forerunner of INC; aimed...

Indian National Army

Definition: Armed force to liberate India.Prelims facts: Led by Subhas Chandra Bose; slogan 'Delhi Chalo'.

Indian Space Research Organisation

Definition: ISRO is India’s national space agency, established in 1969.Key Contributions: PSLV, Gaganyaan, Chandrayaan missions.UPSC...

Indicative Planning

Definition: A form of planning where the state sets broad targets and acts as a...

Inflation Premium

Definition: Inflation premium is the extra return demanded by investors to compensate for the erosion...

Inflation Tax

Definition: Inflation tax refers to the loss of purchasing power faced by people holding cash...

Input Tax Credit

Definition: A GST provision allowing businesses to claim credit for tax paid on inputs used...

Inselberg

Definition: Isolated residual hill in plains.Prelims Pointers: Common in arid regions.PYQ: UPSC Prelims 2015Current Affairs:...

Integrated Farming System

Definition: Integrated Farming System (IFS) combines crop farming with allied activities like livestock, fisheries, and...

Interim Government

Temporary government formed in 1946 before independence.Headed by Jawaharlal Nehru.Functioned under British framework.Included Indian leaders.

International Civil Aviation Organization

A specialized UN agency established in 1944 that facilitates global cooperation in civil aviation. India was...

International Solar Alliance

Definition: A treaty-based intergovernmental organization promoting solar energy. Prelims Traps: Headquarters in Gurugram. India and France...

Interstellar Mapping and Acceleration Probe

Definition: NASA mission to study heliosphere boundary.Launch: 2025 (planned).UPSC Angle: Solar system–interstellar interaction.

Inverted Duty Structure

Definition: A situation where tax rate on inputs is higher than tax rate on finished...

InvITs

Definition: Infrastructure Investment Trusts are pooled investment vehicles for infrastructure assets.Key Prelims Traps:Regulated by SEBI.Used...

IRNSS

Definition: Indian Regional Navigation Satellite System.UPSC Traps: Official name of NavIC.Current Affairs: Integration with smartphones.

Ishwar Chandra Vidyasagar

(1820–1891) - A prominent Indian social reformer, educator, and intellectual of the Bengal Renaissance. Prelims Pointers: ...

Isostasy

Definition: Equilibrium between Earth’s crust and mantle.Prelims Pointers: Explains mountain roots; Airy & Pratt models.PYQ:...

Isotherms

Definition: Lines joining points of equal temperature on a map.UPSC Trap: Used in climatology, not...

ITCZ

Definition: Inter-Tropical Convergence Zone where trade winds meet.Key Facts: Migrates seasonally, causes monsoon.PYQ: 2017, 2020

Izaredari

Revenue farming system where right to collect revenue was auctioned.UPSC Traps: Led to exploitation; later...