Sports-tech startup Machaxi has raised $1.5 million from Rainmatter, Prakash Padukone, and others to expand its AI-based badminton coaching. The funds will support entry into Hyderabad, Pune, and Chennai. Machaxi will also launch 1,000+ coaching centres with the Padukone School of Badminton. Its AI system aims to bring consistency and quality to grassroots training across India.