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Every subject HackIndia runs hackathons, teaches skills and writes about. One page each, gathering all three.

AIBuilding with artificial intelligence: models, APIs and the judgement to tell a demo from a product that holds up.25 hackathons · 6 articles5 open to enter
Web3Smart contracts, wallets and on-chain apps, including everything filed under blockchain.20 hackathons · 2 skills · 3 articles3 open to enter
Machine LearningTraining, evaluating and shipping models, and reporting what they actually do rather than what you hoped.18 hackathons · 3 skills4 open to enter
Open InnovationThe track with no brief. Build whatever you can defend in front of a judge.17 hackathons · 3 articles3 open to enter
BackendAPIs, databases and the parts of a product nobody sees until they break.14 skills
Web DevelopmentThe browser half of the job: pages that load fast, read well and work on a phone.5 hackathons · 6 skills1 open to enter
Generative AIText, image and audio generation - prompting, grounding and shipping features people can trust.5 hackathons · 5 skills · 1 article3 open to enter
CloudRunning what you built on somebody else’s computers, and paying attention to the bill.8 hackathons3 open to enter
Full StackOne person carrying a project from the database to the screen over a weekend.6 hackathons · 1 skill1 open to enter
DataTurning raw events into numbers somebody can act on, and charts that do not mislead.2 hackathons · 4 skills1 open to enter
CybersecurityFinding the holes before somebody else does, and closing them properly.6 hackathons2 open to enter
IoT & RoboticsCode that moves something in the physical world - sensors, devices, robots, cities.6 hackathons · 1 article2 open to enter
AI AgentsSoftware that plans, calls tools and acts on its own - and the guardrails that keep it useful.5 hackathons · 3 articles2 open to enter
MobileApps built for the device most of India actually uses.3 hackathons · 1 skill1 open to enter
DevOpsPackaging, deploying and keeping a project up once other people depend on it.3 skills