240-day UPSC Prelims GS plan to 23 May 2027

One General Studies Paper I theme a day in two phases: a 182-day syllabus phase (Fri 25 Sep 2026 to Thu 25 Mar 2027) and a 58-day revision phase (Fri 26 Mar 2027 to Sat 22 May 2027), the day before UPSC Prelims 2027. Each day's 10-question test opens at midnight IST on 1way, in English and Tamil, and is free that day. From 4 Oct 2026 every Sunday also has a free 25-question weekly mock; in the revision phase it becomes a full-length 100-question paper, with a CSAT practice test every Wednesday.

Take today's test

Phase 1 · Syllabus: days per subject

Science & Technology · 26 days
Polity · 26 days
Economy · 26 days
Geography · 26 days
Environment & Ecology · 26 days
History · 26 days
Art & Culture · 13 days
International Relations · 13 days

Phase 1 · Syllabus (182 days)
Phase 2 · Revision (58 days)

Phase 1 · Syllabus, 182 days

September 2026

Day	Date	Subject	Theme
1	Fri 25 Sep 2026	Science & Technology	Cell Biology & Basics of Genetics
2	Sat 26 Sep 2026	Art & Culture	Architecture – Harappan to Mauryan
3	Sun 27 Sep 2026	Polity	Making of the Constitution & Constituent Assembly
4	Mon 28 Sep 2026	Economy	National Income Accounting – GDP, GVA, NNP
5	Tue 29 Sep 2026	Geography	Solar System & the Earth's Motions
6	Wed 30 Sep 2026	Environment & Ecology	Ecology & Ecosystem Basics

October 2026

Day	Date	Subject	Theme
7	Thu 1 Oct 2026	History	Prehistoric India & the Harappan Civilisation
8	Fri 2 Oct 2026	Science & Technology	Biotechnology – rDNA, CRISPR & Gene Therapy
9	Sat 3 Oct 2026	International Relations	India & its South Asian Neighbours
10	Sun 4 Oct 2026	Polity	Preamble & Salient Features of the Constitution + weekly mock
11	Mon 5 Oct 2026	Economy	Inflation & its Measurement – CPI, WPI, Deflator
12	Tue 6 Oct 2026	Geography	Interior of the Earth & Plate Tectonics
13	Wed 7 Oct 2026	Environment & Ecology	Food Chains, Energy Flow & Ecological Pyramids
14	Thu 8 Oct 2026	History	The Vedic Age
15	Fri 9 Oct 2026	Science & Technology	Vaccines & Immunology
16	Sat 10 Oct 2026	Art & Culture	Temple Architecture – Nagara, Dravida & Vesara
17	Sun 11 Oct 2026	Polity	Union & its Territory; Citizenship + weekly mock
18	Mon 12 Oct 2026	Economy	Money, Money Supply & Functions of the RBI
19	Tue 13 Oct 2026	Geography	Earthquakes, Volcanoes & Landforms
20	Wed 14 Oct 2026	Environment & Ecology	Biogeochemical Cycles
21	Thu 15 Oct 2026	History	Mahajanapadas, Buddhism & Jainism
22	Fri 16 Oct 2026	Science & Technology	Diseases, Pathogens & Public Health Programmes
23	Sat 17 Oct 2026	International Relations	India–China Relations
24	Sun 18 Oct 2026	Polity	Fundamental Rights – Art. 12 to 18 (Right to Equality) + weekly mock
25	Mon 19 Oct 2026	Economy	Monetary Policy – MPC, Instruments & Transmission
26	Tue 20 Oct 2026	Geography	Rocks & Geomorphic Processes
27	Wed 21 Oct 2026	Environment & Ecology	Biomes & Ecological Succession
28	Thu 22 Oct 2026	History	The Mauryan Empire
29	Fri 23 Oct 2026	Science & Technology	Human Body & Nutrition
30	Sat 24 Oct 2026	Art & Culture	Buddhist & Jain Architecture; Rock-cut Caves
31	Sun 25 Oct 2026	Polity	Fundamental Rights – Art. 19 to 22 (Right to Freedom) + weekly mock
32	Mon 26 Oct 2026	Economy	Banking Structure – Commercial, Regional Rural, Small Finance & Payments Banks
33	Tue 27 Oct 2026	Geography	Atmosphere – Composition, Structure & Insolation
34	Wed 28 Oct 2026	Environment & Ecology	Biodiversity – Levels & Hotspots
35	Thu 29 Oct 2026	History	Post-Mauryan India – Kushanas, Satavahanas & Sangam Age
36	Fri 30 Oct 2026	Science & Technology	Space – Launch Vehicles & ISRO Missions
37	Sat 31 Oct 2026	International Relations	India–USA Relations & the Quad

November 2026

Day	Date	Subject	Theme
38	Sun 1 Nov 2026	Polity	Fundamental Rights – Art. 23 to 35 (Exploitation, Religion, Culture, Remedies) + weekly mock
39	Mon 2 Nov 2026	Economy	NPAs, Basel Norms & the Insolvency and Bankruptcy Code
40	Tue 3 Nov 2026	Geography	Pressure Belts, Winds & Jet Streams
41	Wed 4 Nov 2026	Environment & Ecology	Biodiversity Conservation – In-situ & Ex-situ
42	Thu 5 Nov 2026	History	The Guptas & Post-Gupta Period
43	Fri 6 Nov 2026	Science & Technology	Space – Satellites, Orbits & Navigation (NavIC)
44	Sat 7 Nov 2026	Art & Culture	Indo-Islamic Architecture
45	Sun 8 Nov 2026	Polity	Directive Principles & Fundamental Duties + weekly mock
46	Mon 9 Nov 2026	Economy	Financial Markets – Money Market, Capital Market & SEBI
47	Tue 10 Nov 2026	Geography	Clouds, Precipitation & Cyclones
48	Wed 11 Nov 2026	Environment & Ecology	Protected Areas of India – National Parks, Sanctuaries, Biosphere Reserves
49	Thu 12 Nov 2026	History	South Indian Kingdoms – Pallavas, Chalukyas, Cholas
50	Fri 13 Nov 2026	Science & Technology	Space – Planetary Missions & Astronomy
51	Sat 14 Nov 2026	International Relations	India–Russia & Central Asia
52	Sun 15 Nov 2026	Polity	Amendment of the Constitution & Basic Structure + weekly mock
53	Mon 16 Nov 2026	Economy	Government Budgeting & Deficit Concepts
54	Tue 17 Nov 2026	Geography	Climatic Regions of the World
55	Wed 18 Nov 2026	Environment & Ecology	Wetlands, Ramsar Sites, Mangroves & Coral Reefs
56	Thu 19 Nov 2026	History	Ancient Literature, Science & Philosophy
57	Fri 20 Nov 2026	Science & Technology	Nuclear Technology & India's Nuclear Programme
58	Sat 21 Nov 2026	Art & Culture	Indian Painting – Murals & Miniatures
59	Sun 22 Nov 2026	Polity	Parliamentary & Federal Systems + weekly mock
60	Mon 23 Nov 2026	Economy	Taxation – Direct Taxes, Indirect Taxes & GST
61	Tue 24 Nov 2026	Geography	Oceans – Relief, Temperature & Salinity
62	Wed 25 Nov 2026	Environment & Ecology	Threatened Species of India & the IUCN Red List
63	Thu 26 Nov 2026	History	Ancient Economy, Society & Coinage
64	Fri 27 Nov 2026	Science & Technology	Defence Technology – Missiles
65	Sat 28 Nov 2026	International Relations	India, West Asia & the Gulf
66	Sun 29 Nov 2026	Polity	President & Vice-President + weekly mock
67	Mon 30 Nov 2026	Economy	Fiscal Federalism – Finance Commission & Transfers

December 2026

Day	Date	Subject	Theme
68	Tue 1 Dec 2026	Geography	Ocean Currents, Tides, El Niño & IOD
69	Wed 2 Dec 2026	Environment & Ecology	Wildlife (Protection) Act & Biological Diversity Act
70	Thu 3 Dec 2026	History	The Delhi Sultanate
71	Fri 4 Dec 2026	Science & Technology	Defence – Aircraft, Ships & Military Exercises
72	Sat 5 Dec 2026	Art & Culture	Indian Classical Dances
73	Sun 6 Dec 2026	Polity	Prime Minister & Council of Ministers + weekly mock
74	Mon 7 Dec 2026	Economy	Balance of Payments & Current Account
75	Tue 8 Dec 2026	Geography	World Physical Features – Mountains, Rivers, Lakes
76	Wed 9 Dec 2026	Environment & Ecology	Forest Laws – Forest Conservation Act & Forest Rights Act
77	Thu 10 Dec 2026	History	Vijayanagara & Bahmani Kingdoms
78	Fri 11 Dec 2026	Science & Technology	Artificial Intelligence & Machine Learning
79	Sat 12 Dec 2026	International Relations	India, Europe & the UK
80	Sun 13 Dec 2026	Polity	Parliament – Composition, Sessions & Presiding Officers + weekly mock
81	Mon 14 Dec 2026	Economy	Exchange Rate, Forex Reserves & Convertibility
82	Tue 15 Dec 2026	Geography	World Map – Straits, Seas & Geopolitical Hotspots
83	Wed 16 Dec 2026	Environment & Ecology	Air Pollution – AQI & National Clean Air Programme
84	Thu 17 Dec 2026	History	Bhakti & Sufi Movements
85	Fri 18 Dec 2026	Science & Technology	Quantum Technology
86	Sat 19 Dec 2026	Art & Culture	Indian Music – Hindustani & Carnatic
87	Sun 20 Dec 2026	Polity	Parliament – Legislative Procedure & Budget Process + weekly mock
88	Mon 21 Dec 2026	Economy	Foreign Investment – FDI, FPI, ECB
89	Tue 22 Dec 2026	Geography	India – Location & the Himalayas
90	Wed 23 Dec 2026	Environment & Ecology	Water & Soil Pollution
91	Thu 24 Dec 2026	History	The Mughal Empire – Administration & Culture
92	Fri 25 Dec 2026	Science & Technology	Semiconductors & Electronics
93	Sat 26 Dec 2026	International Relations	India, Africa & Latin America
94	Sun 27 Dec 2026	Polity	Parliamentary Committees & Privileges + weekly mock
95	Mon 28 Dec 2026	Economy	International Economic Organisations – IMF, World Bank, WTO
96	Tue 29 Dec 2026	Geography	India – Northern Plains, Peninsular Plateau, Coasts & Islands
97	Wed 30 Dec 2026	Environment & Ecology	Solid, Plastic, E-waste & Hazardous Waste Rules
98	Thu 31 Dec 2026	History	Marathas & Regional Kingdoms

January 2027

Day	Date	Subject	Theme
99	Fri 1 Jan 2027	Science & Technology	Cybersecurity & Data Protection
100	Sat 2 Jan 2027	Art & Culture	Folk & Tribal Arts
101	Sun 3 Jan 2027	Polity	Governor, Chief Minister & State Legislature + weekly mock
102	Mon 4 Jan 2027	Economy	Agriculture – Cropping Patterns, MSP & Procurement
103	Tue 5 Jan 2027	Geography	India – Himalayan Drainage System
104	Wed 6 Jan 2027	Environment & Ecology	Climate Change – Greenhouse Effect & GHGs
105	Thu 7 Jan 2027	History	Advent of the Europeans
106	Fri 8 Jan 2027	Science & Technology	Telecom – 5G, 6G & Internet Technologies
107	Sat 9 Jan 2027	International Relations	The United Nations & its Agencies
108	Sun 10 Jan 2027	Polity	Centre–State & Inter-State Relations + weekly mock
109	Mon 11 Jan 2027	Economy	Agricultural Marketing, Food Security & PDS
110	Tue 12 Jan 2027	Geography	India – Peninsular Drainage & River Interlinking
111	Wed 13 Jan 2027	Environment & Ecology	UNFCCC, Kyoto Protocol, Paris Agreement & COPs
112	Thu 14 Jan 2027	History	British Expansion & Governors-General
113	Fri 15 Jan 2027	Science & Technology	Blockchain, Web3 & the Metaverse
114	Sat 16 Jan 2027	Art & Culture	Indian Theatre & Puppetry
115	Sun 17 Jan 2027	Polity	Emergency Provisions + weekly mock
116	Mon 18 Jan 2027	Economy	Land Reforms, Agricultural Credit & Crop Insurance
117	Tue 19 Jan 2027	Geography	India – Monsoon & Climate
118	Wed 20 Jan 2027	Environment & Ecology	Ozone Depletion – Montreal Protocol & Kigali Amendment
119	Thu 21 Jan 2027	History	The Revolt of 1857
120	Fri 22 Jan 2027	Science & Technology	Nanotechnology & New Materials
121	Sat 23 Jan 2027	International Relations	Global Groupings – G20, BRICS, SCO
122	Sun 24 Jan 2027	Polity	Supreme Court & Judicial Review + weekly mock
123	Mon 25 Jan 2027	Economy	Industry – Industrial Policy, MSMEs & PLI
124	Tue 26 Jan 2027	Geography	India – Soils
125	Wed 27 Jan 2027	Environment & Ecology	Biodiversity Conventions – CBD, CITES, CMS, Ramsar
126	Thu 28 Jan 2027	History	Socio-Religious Reform Movements
127	Fri 29 Jan 2027	Science & Technology	Energy Technology – Batteries, Hydrogen & Fuel Cells
128	Sat 30 Jan 2027	Art & Culture	Schools of Indian Philosophy & Religion
129	Sun 31 Jan 2027	Polity	High Courts, Subordinate Courts & Tribunals + weekly mock

February 2027

Day	Date	Subject	Theme
130	Mon 1 Feb 2027	Economy	Infrastructure – Energy, Transport & PPP Models
131	Tue 2 Feb 2027	Geography	India – Natural Vegetation & Forest Types
132	Wed 3 Feb 2027	Environment & Ecology	Desertification, Land Degradation & UNCCD
133	Thu 4 Feb 2027	History	Early Nationalism & the Moderates
134	Fri 5 Feb 2027	Science & Technology	Robotics, Drones & 3D Printing
135	Sat 6 Feb 2027	International Relations	Regional Groupings – ASEAN, BIMSTEC, SAARC, Indian Ocean
136	Sun 7 Feb 2027	Polity	Panchayati Raj – 73rd Amendment + weekly mock
137	Mon 8 Feb 2027	Economy	Poverty & Unemployment – Concepts and Measurement
138	Tue 9 Feb 2027	Geography	India – Minerals & Energy Resources
139	Wed 10 Feb 2027	Environment & Ecology	Renewable Energy & India's Targets
140	Thu 11 Feb 2027	History	Partition of Bengal, Swadeshi & the Extremists
141	Fri 12 Feb 2027	Science & Technology	Physics in Everyday Life
142	Sat 13 Feb 2027	Art & Culture	Languages, Literature & Scripts
143	Sun 14 Feb 2027	Polity	Urban Local Bodies – 74th Amendment + weekly mock
144	Mon 15 Feb 2027	Economy	Financial Inclusion & Inclusive Growth Schemes
145	Tue 16 Feb 2027	Geography	India – Crops & Agricultural Geography
146	Wed 17 Feb 2027	Environment & Ecology	EIA & Environmental Institutions – NGT, CPCB
147	Thu 18 Feb 2027	History	Revolutionary Movements
148	Fri 19 Feb 2027	Science & Technology	Chemistry in Everyday Life
149	Sat 20 Feb 2027	International Relations	International Treaties & Nuclear Regimes
150	Sun 21 Feb 2027	Polity	Scheduled & Tribal Areas; Special Provisions (Art. 371) + weekly mock
151	Mon 22 Feb 2027	Economy	Human Development – HDI, MPI & Key Indices
152	Tue 23 Feb 2027	Geography	India – Location of Industries
153	Wed 24 Feb 2027	Environment & Ecology	Sustainable Agriculture & Organic Farming
154	Thu 25 Feb 2027	History	Gandhian Phase – Non-Cooperation & Civil Disobedience
155	Fri 26 Feb 2027	Science & Technology	Health Technology – Diagnostics, AMR & Genomics
156	Sat 27 Feb 2027	Art & Culture	UNESCO Heritage of India – World Heritage & Intangible Heritage
157	Sun 28 Feb 2027	Polity	Constitutional Bodies – ECI, UPSC, SPSC, Finance Commission + weekly mock

March 2027

Day	Date	Subject	Theme
158	Mon 1 Mar 2027	Economy	Digital Economy – UPI, Digital Public Infrastructure, CBDC
159	Tue 2 Mar 2027	Geography	India – Transport, Ports & Waterways
160	Wed 3 Mar 2027	Environment & Ecology	Invasive Species, GM Crops & Biosafety
161	Thu 4 Mar 2027	History	Constitutional Developments – 1909 to 1935
162	Fri 5 Mar 2027	Science & Technology	Intellectual Property – Patents & GI Tags
163	Sat 6 Mar 2027	International Relations	Global Indices & Reports
164	Sun 7 Mar 2027	Polity	Constitutional Bodies – CAG, Attorney General, NCSC, NCST, NCBC + weekly mock
165	Mon 8 Mar 2027	Economy	Insurance & Pension Sector
166	Tue 9 Mar 2027	Geography	Population, Migration & Urbanisation
167	Wed 10 Mar 2027	Environment & Ecology	Net Zero, Carbon Markets & Mission LiFE
168	Thu 11 Mar 2027	History	Peasant, Tribal & Labour Movements
169	Fri 12 Mar 2027	Science & Technology	Science Missions, Institutions & Awards
170	Sat 13 Mar 2027	Art & Culture	Festivals, Calendars & Cultural Awards
171	Sun 14 Mar 2027	Polity	Statutory & Non-Constitutional Bodies – NITI Aayog, NHRC, CIC, CVC, Lokpal + weekly mock
172	Mon 15 Mar 2027	Economy	Economic Survey & Union Budget – Key Concepts
173	Tue 16 Mar 2027	Geography	Natural Hazards & Disaster Management
174	Wed 17 Mar 2027	Environment & Ecology	Environmental Reports & Indices
175	Thu 18 Mar 2027	History	Quit India, INA & Transfer of Power
176	Fri 19 Mar 2027	Science & Technology	Science & Technology in News
177	Sat 20 Mar 2027	International Relations	Places in News – World
178	Sun 21 Mar 2027	Polity	Elections, Anti-defection Law & Representation of the People Act + weekly mock
179	Mon 22 Mar 2027	Economy	Green Finance, Carbon Markets & Sustainable Growth
180	Tue 23 Mar 2027	Geography	India Map – Passes, Peaks, National Parks & State Features
181	Wed 24 Mar 2027	Environment & Ecology	Species & Environmental Issues in News
182	Thu 25 Mar 2027	History	Press, Education & Personalities of Modern India

Phase 2 · Revision, 58 days

Each subject comes back several times, spaced out so nothing goes cold before the exam: Polity and Economy 9 days each, Geography, Environment and History 8, Science & Technology 7, Art & Culture and International Relations 4, and a light mixed warm-up on the last day.

March 2027

Day	Date	Subject	Theme
183	Fri 26 Mar 2027	Polity	Revision: Making of the Constitution, Preamble & Citizenship
184	Sat 27 Mar 2027	Economy	Revision: National Income, Inflation & Growth
185	Sun 28 Mar 2027	Geography	Revision: Geomorphology – Earth, Plates & Landforms + weekly mock
186	Mon 29 Mar 2027	Environment & Ecology	Revision: Ecology, Ecosystems & Cycles
187	Tue 30 Mar 2027	History	Revision: Prehistoric, Harappan & Vedic India
188	Wed 31 Mar 2027	Science & Technology	Revision: Biology, Biotechnology & Health

April 2027

Day	Date	Subject	Theme
189	Thu 1 Apr 2027	Art & Culture	Revision: Architecture & Sculpture
190	Fri 2 Apr 2027	International Relations	Revision: India & its Neighbourhood
191	Sat 3 Apr 2027	Polity	Revision: Fundamental Rights
192	Sun 4 Apr 2027	Economy	Revision: Money, RBI & Monetary Policy + weekly mock
193	Mon 5 Apr 2027	Geography	Revision: Climatology – Atmosphere, Winds & Cyclones
194	Tue 6 Apr 2027	Environment & Ecology	Revision: Biodiversity & Conservation
195	Wed 7 Apr 2027	History	Revision: Mahajanapadas to the Mauryas
196	Thu 8 Apr 2027	Science & Technology	Revision: Space Technology & Missions
197	Fri 9 Apr 2027	Polity	Revision: DPSP, Fundamental Duties & Amendments
198	Sat 10 Apr 2027	Economy	Revision: Banking, NPAs & Financial Markets
199	Sun 11 Apr 2027	Geography	Revision: Oceanography & World Physical Features + weekly mock
200	Mon 12 Apr 2027	Environment & Ecology	Revision: Protected Areas, Wetlands & Species in News
201	Tue 13 Apr 2027	History	Revision: Post-Mauryan, Gupta & South Indian Kingdoms
202	Wed 14 Apr 2027	Science & Technology	Revision: Defence & Nuclear Technology
203	Thu 15 Apr 2027	Art & Culture	Revision: Painting, Dance, Music & Theatre
204	Fri 16 Apr 2027	International Relations	Revision: India & the Major Powers
205	Sat 17 Apr 2027	Polity	Revision: President, Prime Minister & Council of Ministers
206	Sun 18 Apr 2027	Economy	Revision: Budget, Taxation & Fiscal Federalism + weekly mock
207	Mon 19 Apr 2027	Geography	Revision: India – Physiography & Drainage
208	Tue 20 Apr 2027	Environment & Ecology	Revision: Environmental Laws & Institutions
209	Wed 21 Apr 2027	History	Revision: Medieval India – Sultanate, Vijayanagara & Mughals
210	Thu 22 Apr 2027	Polity	Revision: Parliament & Legislative Procedure
211	Fri 23 Apr 2027	Economy	Revision: External Sector – BoP, Forex & Foreign Investment
212	Sat 24 Apr 2027	Science & Technology	Revision: AI, Quantum & Semiconductors
213	Sun 25 Apr 2027	Geography	Revision: India – Monsoon, Soils & Vegetation + weekly mock
214	Mon 26 Apr 2027	Environment & Ecology	Revision: Pollution & Waste Management
215	Tue 27 Apr 2027	History	Revision: Bhakti, Sufi & Medieval Culture
216	Wed 28 Apr 2027	Polity	Revision: State Government & Centre–State Relations
217	Thu 29 Apr 2027	Economy	Revision: Agriculture, Food Security & Rural Credit
218	Fri 30 Apr 2027	Art & Culture	Revision: Philosophy, Literature & Languages

May 2027

Day	Date	Subject	Theme
219	Sat 1 May 2027	International Relations	Revision: International Organisations & Groupings
220	Sun 2 May 2027	Science & Technology	Revision: IT, Cybersecurity & Telecom + weekly mock
221	Mon 3 May 2027	Geography	Revision: India – Resources, Agriculture & Industries
222	Tue 4 May 2027	Environment & Ecology	Revision: Climate Change & International Conventions
223	Wed 5 May 2027	History	Revision: British Expansion, 1857 & Reform Movements
224	Thu 6 May 2027	Polity	Revision: Judiciary & Emergency Provisions
225	Fri 7 May 2027	Economy	Revision: Industry, Infrastructure & Digital Economy
226	Sat 8 May 2027	Science & Technology	Revision: Energy Technology, New Materials & Everyday Science
227	Sun 9 May 2027	Geography	Revision: Maps – India & World Places in News + weekly mock
228	Mon 10 May 2027	Environment & Ecology	Revision: Renewable Energy, Net Zero & Green Finance
229	Tue 11 May 2027	History	Revision: National Movement 1885–1919
230	Wed 12 May 2027	Polity	Revision: Local Government & Special Provisions
231	Thu 13 May 2027	Economy	Revision: Poverty, Inclusion & Human Development
232	Fri 14 May 2027	Art & Culture	Revision: Heritage, Festivals & Culture in News
233	Sat 15 May 2027	International Relations	Revision: Treaties, Indices & Places in News
234	Sun 16 May 2027	Science & Technology	Revision: Science & Technology in News + weekly mock
235	Mon 17 May 2027	Geography	Revision: Population, Urbanisation & Disasters
236	Tue 18 May 2027	Environment & Ecology	Revision: Environmental Reports & Current Issues
237	Wed 19 May 2027	History	Revision: National Movement 1919–1947
238	Thu 20 May 2027	Polity	Revision: Constitutional, Statutory & Electoral Bodies
239	Fri 21 May 2027	Economy	Revision: Economic Survey & Union Budget Highlights
240	Sat 22 May 2027	Mixed	Final warm-up: mixed questions across the syllabus

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