AllABCDEFGHIJKLMNOPQRSTUVWXYZ R R.C. Dutt Indian nationalist and economic historian.UPSC Traps: Criticized British land revenue policies; wrote ‘Economic History of... Learn More → Rabindranath Tagore Definition: Poet, writer, and nationalist thinker.Prelims facts: Composed national anthem; renounced knighthood after Jallianwala Bagh. Learn More → Radio Waves Definition: Long wavelength electromagnetic waves.UPSC Traps: Reflected by ionosphere.Current Affairs: Space weather affects propagation. Learn More → Rahnumai Mazdayasnan Sabha Parsi reform association founded in 1851.UPSC Pointers: Social reform among Parsis. Learn More → Raja Ram Mohan Roy Father of Indian Renaissance.UPSC: Brahmo Samaj; abolition of Sati. Learn More → Rajaji Formula Definition: Proposal to resolve Congress–League deadlock.Year: 1944Prelims facts: Suggested plebiscite in Muslim-majority areas. Learn More → Rajendra Prasad Definition: Senior Congress leader and freedom fighter.Prelims facts: President of INC (1934, 1939); first President... Learn More → Rajukas Definition: District-level officials responsible for land measurement and boundary fixation; under Ashoka, they were also... Learn More → Ram Prasad Bismil Definition: Revolutionary nationalist poet and freedom fighter.Prelims facts: Leader of HRA; associated with Kakori Robbery... Learn More → Ramakrishna Mission Spiritual organization founded by Swami Vivekananda.UPSC: Service + spirituality. Learn More → Ramakrishna Paramahansa Mystic saint of Bengal.UPSC: Guru of Vivekananda. Learn More → Rampa Rebellion Definition: Tribal uprising against British policies.Period: 1922–1924Prelims facts: Led by Alluri Sitarama Raju; occurred in... Learn More → Rani Gaidinliu Definition: Naga spiritual and political leader.Prelims facts: Led anti-British movement in Nagaland; supported by Gandhi. Learn More → Rani Laxmibai Definition: Queen of Jhansi and a leading figure of the Revolt of 1857.Key facts: Opposed... Learn More → Rashbehari Bose Definition: Revolutionary nationalist.Prelims facts: Involved in Ghadar conspiracy; later linked with INA origins. Learn More → Rashtriya Swayamsevak Sangh A socio-cultural organization promoting the idea of a Hindu Rashtra, Celebrating its centenary year in... Learn More → Rashtriya Swayamsevak Sangh Definition: Volunteer-based nationalist organization.Founded: 1925Prelims facts: Founded by K.B. Hedgewar; headquarters at Nagpur. Learn More → Rast Goftar Gujarati newspaper linked with Parsi social reforms.UPSC Pointers: Associated with Dadabhai Naoroji. Learn More → Rat-hole Mining Definition: Hazardous coal mining method using narrow tunnels.Key Facts: Banned by NGT; practiced in Meghalaya.Prelims... Learn More → Ravine Definition: Narrow deep valleys caused by erosion.Prelims Pointers: Chambal badlands.PYQ: UPSC Prelims 2015Current Affairs: Land... Learn More → Real GDP Definition: GDP adjusted for inflation, measured at constant prices using a fixed base year.Key Pointers:•... Learn More → Red Fort Trials Definition: Trials of INA officers.Year: 1945Prelims facts: Sparked nationwide protests. Learn More → Red Sea Rifting Definition: Rifting process between African and Arabian plates.UPSC Pointers: Example of young ocean basin; Leads... Learn More → Reflation Definition: Reflation refers to policy measures aimed at boosting economic activity to counter deflationary pressures.Prelims... Learn More → Regolith Definition: Unconsolidated weathered material above bedrock.Prelims Pointers: Includes soil, dust, rock fragments.PYQ: UPSC Prelims 2020 Learn More → Relative Humidity Definition: Ratio of present moisture to maximum capacity at a given temperature.Expressed in: Percentage.PYQ: 2011,... Learn More → Revolt Symbols Definition: Symbols like chapatis, lotuses and red turbans used to spread messages.Time period: Revolt of... Learn More → Ring Fence Definition: British policy of protecting allied states around British territories for security.• Time Period: 1765–1772•... Learn More → Ring of Fire Definition: A horseshoe-shaped belt of seismic and volcanic activity around the Pacific Ocean.UPSC Pointers: Covers... Learn More → Rita Definition: The fundamental universal moral and cosmic order governing the universe. It was the law... Learn More → Robert Clive Definition: British officer and administrator.• Time Period: 18th century• UPSC Prelims Pointers: Led Plassey; dual... Learn More → Rockies Definition: Major mountain range in western North America.Prelims Pointers: Countries—USA, Canada; River—Colorado; Mineral resources—coal.PYQ: UPSC... Learn More → Rokeya Sakhawat Hossain Definition: Pioneer of Muslim women’s education and feminist thinker in colonial India.Time period: Late 19th... Learn More → Roll Cloud Definition: Low horizontal tube-shaped cloud.PYQ: 2020 Learn More → Rolling Plan Definition: A planning approach involving continuous revision of targets rather than fixed five-year goals.Key Points... Learn More → Rowlatt Act Definition: Law allowing detention without trial.Year: 1919Prelims facts: Known as Black Act; opposed by Gandhi. Learn More → Ryot Individual cultivator or peasant directly responsible for land revenue payment.UPSC Traps: Central to Ryotwari system;... Learn More → Ryotwari Definition: Land revenue system where revenue was collected directly from peasants.• Time Period: Early 19th... Learn More → Ryotwari System Land revenue system where revenue was collected directly from cultivators.UPSC Traps: Introduced by Munro; prevalent... Learn More →
