All entries
407 Indian innovations, each with its sources.
Mathematics & Computer Science
- Classification of infinities 1,000 BCE
- Names for very large powers of ten 1,000 BCE
- Binary numeral representation 300 BCE
- Fibonacci-type sequence (matrameru) 200 BCE
- Bakhshali manuscript: written zero & algorithms 201 CE
- Decimal place-value system 401 CE
- Algebraic symbolism for unknowns 401 CE
- Accurate approximation of pi 499 CE
- Trigonometry and sine tables (jya) 499 CE
- Kuttaka algorithm for linear equations 499 CE
- Algorithms for square and cube roots 499 CE
- Hindu-Arabic numerals (1-9) 501 CE
- Early trigonometric identities 501 CE
- Katapayadi and bhutasankhya numeral encoding 601 CE
- Zero as a number (with arithmetic rules) 628 CE
- Negative numbers and sign rules 628 CE
- Brahmagupta's formula & Brahmagupta-Fibonacci identity 628 CE
- Brahmagupta's general rule for quadratics 628 CE
- Brahmagupta's theorem on cyclic quadrilaterals 628 CE
- Bhavana: the composition law 628 CE
- Sine approximation formula 629 CE
- Finite-difference interpolation 665 CE
- Precursor to the binary logarithm (ardhaccheda) 701 CE
- Chakravala (cyclic) method for Pell's equation 801 CE
- Combinatorics: permutations & combinations 801 CE
- Sridhara's rule for quadratic equations 870 CE
- Pascal's triangle (Meru-prastara) 901 CE
- Early differential ideas (instantaneous motion) 1150
- Bhaskara II's dissection proof of the right-triangle theorem 1150
- Lilavati: a textbook for centuries 1150
- Infinite series for pi, sine and cosine 1340
- Systematic generation of permutations 1356
- Narayana Pandita's magic squares 1356
- Mean-value-theorem-type result 1380
- Hint that pi is irrational 1500
- Yuktibhasa: derivations of the Kerala series 1530
- Ramanujan's number theory 1914
- Mahalanobis distance and large-scale surveys 1936
- Harish-Chandra's harmonic analysis 1940
- Kosambi's map function (genetics) 1944
- Cramer-Rao bound and Rao-Blackwell theorem 1945
- Kaprekar's constant (6174) 1949
- BCH error-correcting codes 1959
- 'Euler's spoilers': disproof of Euler's conjecture 1959
- Varadhan's large-deviation theory 1960
- Narasimhan-Seshadri theorem 1965
- Shakuntala Devi's mental calculation 1980
- Karmarkar's algorithm 1984
- Manjul Bhargava's composition laws 2000
- Akshay Venkatesh's work in number theory 2000
Logic & Philosophy of Science
- Atomism (paramanu) 600 BCE
- Empiricism and skepticism (Charvaka) 600 BCE
- Panini's generative grammar 500 BCE
- The 'zero morpheme' (lopa) concept 500 BCE
- Formal logic and theory of inference (Nyaya) 200 BCE
- Jaina seven-valued logic (syadvada) 1 CE
- Catuskoti (the tetralemma) 150 CE
- Wheel of reason (Hetucakra) and the three marks 401 CE
- Navya-Nyaya technical logical language 1201
Astronomy & Cosmology
- Vedanga Jyotisha: earliest Indian astronomical text 1,400 BCE
- Vast cosmic time-cycles (yugas/kalpa) 1,000 BCE
- The 27/28 nakshatra lunar mansions 1,000 BCE
- Surya Siddhanta 300 CE
- Estimate of Earth's circumference 401 CE
- Earth rotates on its axis 499 CE
- Eclipses explained by shadows 499 CE
- Moon shines by reflected sunlight 499 CE
- Accurate length of the sidereal year 499 CE
- Knowledge of precession (ayanamsa) 500 CE
- Periodicity of comets 501 CE
- Pancha-Siddhantika: five schools compared 575 CE
- Yantraraja: first Sanskrit astrolabe treatise 1370
- Parameshvara's Drgganita: observation-based correction 1431
- Geo-heliocentric planetary model 1501
- Jantar Mantar observatories 1720
- Evershed effect (Kodaikanal Observatory) 1909
- Saha ionization equation 1920
- Chandrasekhar limit 1930
- Indian National Calendar (Saka calendar reform) 1957
- Wilson-Bappu effect 1957
- Hoyle-Narlikar theory of gravity 1964
- Ooty Radio Telescope 1970
- Giant Metrewave Radio Telescope (GMRT) 1990
- AstroSat space observatory 2015
Physics & Mechanics
- Idea of matter's indestructibility 1,000 BCE
- Toe-loop stirrup 200 BCE
- Concept of relative motion 499 CE
- Intuition of gravity ('gurutvakarshan') 601 CE
- Early perpetual-motion wheel proposal 1150
- Iron-cased war rockets (Mysorean rockets) 1701
- Radhanath Sikdar's Everest computation 1852
- Radio/microwave wireless demonstration 1894
- Waveguide, horn antenna and semiconductor detector 1897
- Bose-Einstein statistics and the boson 1924
- Raman effect (Raman scattering) 1928
- K. S. Krishnan and the Raman effect 1928
- Sisir Kumar Mitra's ionosphere research 1930
- Bhabha scattering and cosmic-ray cascades 1935
Space & Aerospace
- Rakesh Sharma: first Indian in space 1984
- Chandrayaan-1 and lunar water 2008
- Mars Orbiter Mission (Mangalyaan) 2013
- PSLV-C37: 104 satellites in one launch 2017
- Gaganyaan human spaceflight programme (in progress) 2018
- NavIC regional navigation system 2018
- Chandrayaan-3 south-pole Moon landing 2023
- Aditya-L1 solar observatory 2023
- First Indian on the International Space Station 2025
Computing, IT & AI
- Fibre optics (imaging fibre bundles) 1950
- First computers at ISI Kolkata and the ISIJU-1 1953
- TIFRAC, the first computer built in India 1955
- Pioneering AI and speech recognition 1960
- Linear predictive coding and CELP speech coding 1967
- IT services industry and the global delivery model 1968
- File Transfer Protocol (FTP) 1971
- Digital video compression and HDTV 1972
- National Informatics Centre and NICNET 1976
- Electronic voting machines (India) 1982
- Sun Microsystems co-founded 1982
- C-DOT digital exchanges and rural telephony 1984
- Chandy-Lamport distributed snapshot 1985
- Computerised railway reservation (PRS) 1986
- ERNET, India's first internet network 1986
- The Dragon Book on compilers 1986
- ISCII, the encoding standard for Indian scripts 1988
- ARIES database recovery 1989
- USB (Universal Serial Bus) 1990
- Timed automata 1990
- Edge-preserving diffusion and normalized cuts in computer vision 1990
- PARAM 8000 supercomputer 1991
- MIMO wireless 1992
- PCP theorem and hardness of approximation 1992
- Pentium processor co-development 1993
- Quantum complexity theory 1993
- Association rule mining (Apriori) 1993
- NSGA-II multi-objective optimisation 1994
- Public internet service in India 1995
- corDECT wireless local loop 1995
- Webmail (Hotmail) 1996
- Grover's quantum search algorithm 1996
- Juniper's high-speed internet routers 1996
- RSS, RDF and Schema.org 1997
- List decoding of Reed-Solomon codes 1997
- Simputer, an open-hardware handheld 1998
- AKS primality test 2002
- Unique games conjecture 2002
- Google News, automated news aggregation 2002
- Aadhaar and the India Stack 2010
- DigiLocker digital documents 2015
- Unified Payments Interface (UPI) 2016
- The Transformer (Attention Is All You Need) 2017
- CoWIN vaccination platform 2021
- ONDC and the Beckn protocol 2021
- Indigenous 'sovereign' LLMs (IndiaAI Mission) 2024
Medicine & Surgery
- Prehistoric dentistry (drilled teeth) 7,000 BCE
- Neolithic skull trepanation (Burzahom) 2,500 BCE
- Balathal: earliest evidence of leprosy 2,000 BCE
- Early description of leprosy 1,500 BCE
- Systematic surgery: ~300 procedures, ~120 instruments 1,000 BCE
- Cataract surgery (couching) 1,000 BCE
- Reconstruction of ears and lips (otoplasty) 1,000 BCE
- Recognition of diabetes ('madhumeha') 1,000 BCE
- Surgical anaesthesia and antiseptic-like practice 1,000 BCE
- Marma (vital-point) anatomy 1,000 BCE
- Medicinal plant pharmacopoeia 1,000 BCE
- Surgery for bladder stones (lithotomy) 1,000 BCE
- Early tonsillectomy 1,000 BCE
- Rhinoplasty (nose reconstruction) 600 BCE
- Description of angina (hritshoola) 600 BCE
- Internal medicine and metabolism framework 200 BCE
- Textual description of caesarean section 1 CE
- Siddha system of medicine 1 CE
- Unani medicine in India 1200
- Variolation (smallpox inoculation) 1701
- First Indian women physicians 1886
- Haffkine's cholera and plague vaccines 1892
- Malaria transmission by mosquitoes 1897
- Subbarow: ATP, folic acid and methotrexate 1920
- Urea stibamine for kala-azar 1922
- Asima Chatterjee: plant-drug chemistry 1940
- Oral Rehydration Solution (ORS) 1953
- Cervical cerclage (Shirodkar stitch) 1955
- Discovery of cholera toxin 1959
- World's largest vaccine maker (Serum Institute) 1966
- Cracking the genetic code / first synthetic gene 1968
- Jaipur Foot prosthesis 1968
- India's generic-medicine industry 1970
- Aravind high-volume cataract surgery model 1976
- India's first IVF baby 1978
- Cipla's 'dollar a day' AIDS therapy 2001
- Low-cost cardiac surgery model (Narayana Health) 2001
- Rotavac: indigenous rotavirus vaccine 2014
- Covaxin COVID-19 vaccine 2020
Agriculture, Botany & Everyday Tech
- Cotton cultivation and spinning 5,000 BCE
- Precision linear measurement (Indus ruler) 2,600 BCE
- Model bullock carts and wheeled toys 2,600 BCE
- Indus multi-cropping (summer and winter crops) 2,600 BCE
- Ornamental button 2,000 BCE
- Rain gauge 400 BCE
- Statecraft-era agronomy and irrigation 300 BCE
- Plant science and grafting (Vrikshayurveda) 901 CE
- Herbal shampoo and hair cleansing 1762
- Bamboo drip irrigation 1820
- Crescograph and plant electrophysiology 1900
- Janaki Ammal's sugarcane hybrids 1930
- Green Revolution in India 1960
- Operation Flood (White Revolution) 1970
Metallurgy, Materials & Chemistry
- Sivagalai: claimed 4th-millennium-BCE iron 3,345 BCE
- Etched carnelian beads 3,000 BCE
- Ahar-Banas copper smelting 3,000 BCE
- Lost-wax (cire perdue) bronze casting 2,600 BCE
- Ernestite drills and 12-cm carnelian beads 2,600 BCE
- Indus stoneware bangles and faience 2,600 BCE
- Steatite micro-beads 2,600 BCE
- Early southern iron: Mayiladumparai, Brahmagiri, Gachibowli 2,200 BCE
- Early iron metallurgy 1,800 BCE
- Mangadu iron sword 1,510 BCE
- Indigo dye and calico printing 1,500 BCE
- Diamond mining and use 1,000 BCE
- Lac dye and shellac 1,000 BCE
- Crystallised cane sugar 500 BCE
- Wootz (crucible) steel 300 BCE
- Early glass-bead technology (glassblowing) 200 BCE
- Ultra-fine muslin textiles 1 CE
- Rust-resistant iron (Iron Pillar of Delhi) 375 CE
- Diamond cutting, polishing and drills 501 CE
- Rasashastra (iatrochemistry/alchemy) 601 CE
- Industrial zinc distillation 1000
- Aranmula metal mirror 1200
- Kannauj attar distillation 1200
- Bidriware inlay 1300
- Seamless celestial globe 1589
- Dhokra lost-wax casting 1600
- Prafulla Chandra Ray and Bengal Chemicals 1896
- Bhatnagar-Mathur magnetic interference balance 1928
Textiles & Craft
- Wild silk in the Indus Civilisation 2,450 BCE
- Jute cultivation and processing 1,500 BCE
- Pashmina/cashmere wool craft 300 BCE
- Bow-carding of fibre 101 CE
- Single-roller cotton gin 401 CE
- Spinning wheel (charkha) 500 CE
- Chintz (printed/painted cotton) 600 CE
- Calico cotton cloth 1001
- Patola double ikat 1200
- Kalamkari mordant painting 1200
- Bandhani tie-dye 1200
- Banarasi zari brocade 1550
Architecture & Engineering
- Planned cities with grid streets 2,600 BCE
- Covered urban drainage and sanitation 2,600 BCE
- Standardised weights and measures 2,600 BCE
- Mohenjo-daro's brick-lined wells 2,600 BCE
- Standard 1:2:4 brick proportions 2,600 BCE
- Tidal dock engineering (Lothal) 2,400 BCE
- Geometry for altar construction (Sulba Sutras) 800 BCE
- Approximation of the square root of 2 800 BCE
- Stupa architecture (ancestor of the pagoda) 300 BCE
- Eri tank irrigation networks 0 CE
- Vastu Shastra architectural treatises 0 CE
- Kallanai (Grand Anicut) dam 101 CE
- Stepwells (baoli/vav) hydraulic architecture 401 CE
- Brihadeeswara Temple (granite engineering) 1010
- Ramappa Temple's lightweight bricks 1200
- Kuhl gravity irrigation 1200
- Taq and dhajji dewari timber-laced walls 1200
- Vijayanagara (Hampi) hydraulics and city 1301
- Taj Mahal 1632
- Gol Gumbaz whispering gallery 1656
- Living root bridges (Jingkieng Jri) 1800
- Surangam tunnel wells 1800
- Bhunga earthquake-resistant houses 1800
- Chenab Rail Bridge 2025
Archaeology & Prehistory
- Attirampakkam: oldest stone tools in India 1.5 million years ago
- Soanian pebble-tool industry 1.5 million years ago
- Isampur Acheulean quarry-workshop 1.2 million years ago
- Attirampakkam: early Middle Palaeolithic transition 385,000 years ago
- Hathnora: the 'Narmada' hominin fossil 250,000 years ago
- Daraki-Chattan and Bhimbetka cupules 200,000 years ago
- Jwalapuram: humans around the Toba supereruption 74,000 years ago
- Patne: engraved ostrich-eggshell beads 25,000 years ago
- Baghor I: a possible Upper Palaeolithic shrine 9,000 BCE
- Bhirrana: earliest Harappan-culture phase 7,500 BCE
- Mehrgarh: earliest farming in South Asia 7,000 BCE
- Lahuradewa: early rice cultivation 6,400 BCE
- Dholavira: water engineering and 'signboard' 3,000 BCE
- Burzahom: Neolithic pit-dwellings 3,000 BCE
- Neolithic ash mounds (Utnur, Budihal) 3,000 BCE
- Kalibangan: the world's earliest ploughed field 2,800 BCE
- Harappa: first-discovered Indus city 2,600 BCE
- Mohenjo-daro: the Great Bath and city 2,600 BCE
- Rakhigarhi: largest Harappan city 2,600 BCE
- Chanhudaro: an industrial town 2,600 BCE
- Banawali and the toy plough 2,600 BCE
- Indus seals 2,600 BCE
- Rakhigarhi: first ancient Indus genome 2,500 BCE
- The 'Pashupati' seal (proto-Shiva?) 2,500 BCE
- Lothal: dockyard and bead factory 2,400 BCE
- Surkotada: the contested horse bones 2,100 BCE
- Sanauli: Bronze-Age carts and warrior burials 2,000 BCE
- Copper Hoard culture 2,000 BCE
- Kilnamandi terracotta sarcophagus burial 1,692 BCE
- Inamgaon: Chalcolithic farming village 1,600 BCE
- Daimabad bronzes 1,334 BCE
- South Indian megalithic culture 1,200 BCE
- Painted Grey Ware culture 1,200 BCE
- Adichanallur urn-burial site 1,000 BCE
- Vadnagar: continuous settlement since c. 800 BCE 800 BCE
- Northern Black Polished Ware 700 BCE
- Keeladi: Sangam-era urbanism 600 BCE
- Sisupalgarh fortified city 500 BCE
- Kodumanal: Sangam-era industrial village 500 BCE
- Porunthal: AMS-dated Tamil-Brahmi and rice 500 BCE
- Nain Singh Rawat's survey of Tibet 1865
- Birbal Sahni's palaeobotany 1920
Art, Sculpture & Rock Art
- Bhimbetka rock shelters 10,000 BCE
- Edakkal Neolithic petroglyphs 7,000 BCE
- Barabar caves: earliest rock-cut caves 300 BCE
- Mauryan lustrous stone polish 300 BCE
- Lion Capital of Ashoka 250 BCE
- Ajanta cave murals 200 BCE
- Gandhara Greco-Buddhist sculpture 100 BCE
- Sanchi Stupa gateways (toranas) 100 BCE
- Mathura sculpture school 1 CE
- Ellora rock-cut complex 501 CE
- Kailasa Temple, Ellora 701 CE
- Chola bronze Nataraja 901 CE
- Khajuraho temple sculpture 950 CE
- Hoysala temple carving 1101
- Konark Sun Temple 1201
Writing & Scripts
- Palm-leaf and birch-bark manuscripts 1,000 BCE
- Tamil-Brahmi and early Tamil literacy 600 BCE
- Brahmi script 300 BCE
- Kharosthi script 300 BCE
- Ashokan edicts 300 BCE
Language, Music & Games
- Cubical dice (Indus) 2,600 BCE
- Systematic phonetics (Shiksha) 1,000 BCE
- Dramaturgy and aesthetics (rasa theory) 200 BCE
- Tolkappiyam: early Tamil grammar 200 BCE
- Microtonal music theory (shrutis) 1 CE
- Bhartrhari's sphota theory of meaning 400 CE
- Chess (Chaturanga) 501 CE
- Snakes and Ladders (Moksha Patam) 600 CE
- Pachisi / Ludo 600 CE
- Sangita Ratnakara 1200
- Playing cards (Ganjifa / painted-rag suits) 1501
- Venkatamakhin's 72 melakarta scheme 1660
- Pallanguzhi (mancala family) 1700
Sport & Martial Arts
- Yoga 1,000 BCE
- Kalaripayattu 1100
- Mallakhamba (pole gymnastics) 1135
- Modern polo from Manipur's sagol kangjei 1859
- Badminton (Poona) 1860
- Snooker (British India) 1875
- Kho-kho 1914
- Kabaddi 1920
Education & Knowledge Systems
Economy, Trade & Statecraft
- Indus carnelian beads in Ur and Oman 2,600 BCE
- Meluhha in Mesopotamian records 2,300 BCE
- Shortughai: an Indus trading outpost 2,200 BCE
- Indian Ocean seafaring and sewn ships 1,000 BCE
- Shreni craft and merchant guilds 1,000 BCE
- Punch-marked coinage 600 BCE
- Cheque-like negotiable instrument (Adesha) 321 BCE
- Statecraft, economics and administration 300 BCE
- Ashoka's welfare edicts 300 BCE
- Arikamedu: Indo-Roman trade port 100 BCE
- Monsoon sailing before 'Hippalus' 100 BCE
- Muziris and the spice trade 1 CE
- Chola naval expedition to Srivijaya 1025
- Hundi credit instruments 1200
- Bombay Dockyard warships for the Royal Navy 1777
- Indelible election ink 1962
- SEWA: Self Employed Women's Association 1972
Energy & Nuclear
Modern Biopiracy Cases
- Diamond v. Chakrabarty (patenting life) 1980
- Neem fungicide patent (revoked) 1994
- Turmeric wound-healing patent (revoked) 1995
- Basmati rice patent (mostly struck down) 1997
- Traditional Knowledge Digital Library (TKDL) 2001
- India's biodiversity and farmers'-rights laws 2001
- Darjeeling tea: India's first GI 2004
- TKDL documentation of yoga postures 2010
- First compulsory licence: Natco v. Bayer (Nexavar) 2012
- Novartis v. Union of India (Glivec, 2013) 2013
- Basmati GI dispute in the EU 2018
Contested / Myth (Fact-check)
- 'Ancient India had aeroplanes (Vimanas)' 1918
- 'Ancient nuclear weapons / Mohenjo-daro radiation' 1950
- 'Ancient stem-cell / test-tube babies' 1950
- 'Ganesha proves ancient head-transplant surgery' 1950
- 'The Rigveda records the speed of light' 1950
- 'Sanjaya's narration proves ancient television/internet' 1950
- 'Pythagoras learned everything in India' 1950
- 'Burzahom needles prove the Kashmir shawl began in the Neolithic' 1950
- 'Pingala used a dot as the world's first zero symbol' 1950
- 'India ink was invented in India' 1950
- 'Polo was played in Manipur from 3100 BCE' 1950
- 'The Taj Mahal was a Hindu temple (Tejo Mahalaya)' 1950
- 'NASA says Sanskrit is the best language for computers' 1950
- 'Aryabhata proposed a heliocentric solar system' 1950
- 'Ram Setu is a man-made bridge' 1950
- 'The Indus script has been deciphered (as Sanskrit, etc.)' 1950
- 'Dashavatara describes Darwinian evolution' 1950
- 'Vedic Mathematics' (1965) is ancient 1965
- 'An Indian teenager invented email' 1978
- 'Coronil cures COVID-19' 2020