Naveen Kumar Singh is a Professional Scrum Trainer with extensive experience in Agile coaching and training, focusing on Scrum, Kanban, and engineering practices. The document discusses methodologies for implementing Agile practices, particularly through Behavior Driven Development (BDD), and emphasizes the importance of clear acceptance criteria and specifications to deliver business value. It outlines the steps for refining product backlogs, splitting requirements, and providing concrete examples to ensure successful development and collaboration among teams.