Prelims Pointers

World Heritage Day 2025
World Heritage Day 2025

World Heritage Day (18 April) highlights the need to protect cultural and natural heritage. India currently has 43 UNESCO World Heritage Sites, supported by major ASI and digital heritage initiatives.

Pi(Ï€) Day
Pi(Ï€) Day

Pi Day on 14 March celebrates the constant π, its scientific importance, and key contributions by Aryabhata and Ramanujan in its calculation.

World Sparrow Day
World Sparrow Day

World Sparrow Day (20 March) highlights the decline of sparrows and promotes conservation through urban greening, habitat protection, and public awareness.

Jan Aushadhi Diwas
Jan Aushadhi Diwas

Jan Aushadhi Diwas (7 March) promotes affordable, high-quality generic medicines under PMBJP, expanding access and reducing out-of-pocket healthcare costs.

Human Digestive System
Human Digestive System

Human digestive system breaks food into simple nutrients, absorbs them, and removes waste. Key organs, enzymes, and glands ensure proper digestion.

Sheep Breeds of India
Sheep Breeds of India

India has 40+ sheep breeds across regions; key breeds include Marwari, Gaddi, Deccani, Nellore, Rampur-Bushair, Changthangi and Lohi.

Birsa Munda
Birsa Munda -tribal freedom fighter

Birsa Munda’s 150th birth anniversary honors his role as a tribal freedom fighter who led the Ulgulan movement and defended tribal land and identity.

AI-Based Locking Monitoring System: DRISHTI
DRISHTI: AI-Based Locking Monitoring System

Indian Railways’ new AI-based system DRISHTI uses real-time cameras and machine learning to detect tampered or unlocked freight wagon doors, boosting cargo security and reducing manual inspections.

Moon’s Sphere of Influence (MSI)
Moon’s Sphere of Influence (MSI)

The Moon’s Sphere of Influence is the region where the Moon’s gravity dominates spacecraft motion, guiding lunar flybys and orbit planning.

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