I'm Ajay Patil, a 19-year-old B.Com student from Ranebennur, Karnataka. I built Revenue Engine — an AI sales automation tool — in 72 hours with zero coding experience and zero funding using AI tools like Manus, Groq API, Replit and Claude. I launched on Product Hunt and have been building in public since day 1. I believe anyone can build AI products regardless of their background or budget.