Unit 1 Rapid Revision — 5 minutes: IKS = India's codified + oral knowledge systems (organized observation, logical method, disciplined transmission). Bharat Varsha = land of Bharata, south of the Himalayas, north of the ocean. People: 16 mahajanapadas, varna-ashrama knowledge order. Nature: Himalayas (water tower), 3 river systems, Harappan cities, Kamrupa, ports, forests/metals, sacred groves + water harvesting + Nakshatra agriculture. Worldview: Vasudhaiva Kutumbakam; "Earth is my mother" (Atharvaveda).
IKS definition: millennia-old Indian knowledge — codified texts (Vedas, Arthashastra, Samhitas, Ashtadhyayi) + oral traditions — with observation, logic (Nyaya pramana), transmission discipline. Indigenous = place-rooted community knowledge; Traditional = generation-to-generation knowledge.
Scope (7 domains): philosophy/logic, maths/astronomy (zero, decimal), medicine (Charaka, Sushruta — 300+ surgeries), language (Panini), governance (Arthashastra), ecology/agriculture (Krishi-Parashara), arts/crafts (Shilpa Shastras).
Importance today: sustainability (johads, sacred groves) • NEP 2020 §4.27 "Knowledge of India" • decolonizing curricula • global yoga/Ayurveda • TKDL vs biopiracy.
Bharat Varsha: named after emperor Bharata (Vishnu Purana: son of Rishabha; Mahabharata: son of Dushyanta–Shakuntala). "Varsha" = division of earth. Vishnu Purana: land south of the Himalayas, north of the ocean.
16 mahajanapadas: Magadha, Kosala, Vatsa, Avanti, Kashi, Gandhara, Kamboja, Kuru, Panchala, Shurasena, Matsya, Chedi, Ashmaka, Malla, Vajji (Vaishali), Anga. Monarchies + republics (gana-sanghas). Varna-ashrama = division of knowledge labour; shrenis (guilds) kept craft knowledge.
3 river systems: Sindhu (Indus + 5 tributaries → Arabian Sea), Ganga (→ Bay of Bengal), Brahmaputra (joins Ganga delta). Sapta-Sindhu = 7 rivers (Sindhu + 5 Punjab tributaries + Saraswati). Sindhu → Hindu → Indos → India.
Harappan sites: Mohenjodaro (Great Bath, 12×7 m), Harappa, Lothal (world's earliest dockyard), Dholavira (reservoirs), Kalibangan (earliest ploughed field). Grid streets, 1:2:4 bricks, covered drains, binary-decimal weights. Kamrupa/Pragjyotishpura: Brahmaputra valley; Kamakhya; jyotisha tradition.
Ports: Lothal, Bharuch, Muziris (Roman pepper trade), Tamralipti. Monsoon navigation; Yuktikalpataru shipbuilding (stitched boats). Forests (Arthashastra): dravyavana, hastivana, mrigavana; vanapala. Metals: Delhi Iron Pillar (rust-free, Gupta age), Zawar (world's earliest zinc distillation), wootz steel.
Ecological wisdom: sacred groves (devavan/orans) • water harvesting — johads, baolis, tankas, ahar-pyne • monsoon folk meteorology • Nakshatra agriculture (Krishi-Parashara; Rohini/Mrigashira = monsoon onset).
2 quotes = top marks: Vasudhaiva Kutumbakam (Maha Upanishad — "the whole earth is one family") • "Mata bhumih putroham prithivyah" (Atharvaveda Bhumi Sukta — "Earth is my mother, I am her son").
