The UPSC Blog · GS Paper I
GS Paper I: History, culture, society, geography
Everything on the blog that serves GS Paper I — Indian heritage and culture, modern and world history, Indian society, and physical and human geography — with the Prelims facts and the Mains dimensions for each. Read the official GS Paper I syllabus · UPSC's GS Paper I questions since 2016.
Static notes
Indian Monsoon: Mechanism, El Niño, IOD and the Northeast Monsoon — UPSC Notes
A one-stop GS1 guide to the Indian monsoon: how it works, why it fails, how El Niño and the IOD change it, and why Tamil Nadu gets its rain in October–December. Includes the 2026 season, PYQs, MCQs and Mains questions.
· 11 min read
Caste System in India: Key Concepts, Constitutional Safeguards and Caste Among the Diaspora — UPSC Notes
A one-stop GS1 guide to caste in India: its features, the key sociological concepts compared, Ambedkar's views, the constitutional safeguards, and why the debate has reached campuses abroad. Includes verified PYQs, MCQs and Mains questions.
· 11 min read
Ancient Monuments in India: AMASR Act, ASI, NMA and Adopt a Heritage — UPSC Notes
A one-stop UPSC guide to monument protection: the AMASR Act, 1958, the 100 m and 200 m zones, the ASI and the NMA, Adopt a Heritage 2.0 and the debate on concerts at protected monuments, with PYQs, MCQs and Mains questions.
· 7 min read
Demographic Dividend in India: Meaning, Window of Opportunity and the Jobs Challenge — UPSC Notes
India's demographic window opened around 2005–06 and may last till about 2055–56, but the dividend is only a potential. Dependency ratio, demographic transition, the jobs test from PLFS 2025, the South–North gap and how to write it in GS1 and GS3, with PYQs and MCQs.
· 10 min read
POCSO Act, 2012: Features, Implementation Gaps, and Age-of-Consent Debate — UPSC Notes
A complete UPSC guide to the POCSO Act, 2012: key provisions and sections, how a case moves through the system, what NCRB data shows about implementation, the age-of-consent debate, and the Delhi High Court's 2026 ruling on personal law.
· 12 min read
Current-affairs explainers
Untouchability in India: Article 17, the PCR Act and Why Law Alone Hasn’t Ended It
Article 17 abolished untouchability in 1950, yet the Haldwani ‘purification’ row shows prejudice outlasting law. What Article 17, Article 35, the PCR Act and the PoA Act say, with a Prelims MCQ and Mains angles.
· 5 min read
Ramappa Temple and the Coal Mine Row: Why a UNESCO World Heritage Site Needs More Than a 300-Metre Buffer
Heritage groups want the Centre to drop a proposed opencast coal mine about 5 km from the Ramappa Temple in Telangana. What makes the Kakatiya temple special, how the World Heritage system and India's AMASR Act protect it, and how to use the issue in GS1 and GS3.
· 6 min read
Census 2027 Explained: Caste Count, Open Column, Boundary Freeze and Delimitation
Census 2027 is India's first digital Census and the first to count caste in a Census since Independence, through an open column. What the Census is, SECC versus Census, the boundary freeze, delimitation, and what the data will decide.
· 10 min read
Monsoon 2026: Why Odisha Got Excess Rain When India Was Deficient — Bay of Bengal Low-Pressure Systems Explained
India's 2026 southwest monsoon ended 12.6% below normal, yet Odisha was the only meteorological subdivision with excess rain, 29% above normal. How Bay of Bengal low-pressure systems explain the contrast, how IMD classifies them, and how to use the season in GS1 and GS3.
· 6 min read