https://www.defencewatch.in/ministry-of-defence/drdo/homeland-security-drdo-hands-over-ai-based-prajna-system-to-mha https://media.assettype.com/defencewatch/2026-04-22/hvbodhoa/DRDO-‘Prajna’-Surveillance-System-1.jpg hourly 2026-04-22T13:36:44.407Z