Code for India launched 'Code for a Billion', a 90-day agentic-AI hackathon, on 15 August, India's 80th Independence Day. It is open to students, professionals and independent developers, solo or in teams, from anywhere in the world, and it costs nothing to enter. Entrants build open-source agent systems for Indian public health along three tracks: Saathi, an AI companion for frontline health workers; Nirog, a preventive-health digital twin; and Jan Swasth Map, a population-health dashboard. Every participant receives one million free smart-code tokens on the AgentFoundry.me development environment. The total prize pool is ₹18 lakh, awarded per track — ₹150,000 for first place, ₹100,000 for second and ₹50,000 for third — alongside sponsor awards and fast-track incubation for standout projects. Projects must be deployed and open-sourced by 15 November 2026, with winners announced on 5 December. The event runs fully online; optional meetups and demo days are planned in Delhi, Mumbai, Bengaluru, Hyderabad, Indore and Lucknow. Registration is through AgentFoundry.me, where you create the project and invite collaborators.