Engineers' Day in India is celebrated annually on September 15. In 2025, it falls on Monday, September 15. This day commemorates the birth anniversary of Sir Mokshagundam Visvesvaraya, one of India's greatest engineers known for his pioneering contributions to engineering and infrastructure. The day honors engineers' significant role in nation-building and innovation, inspiring future generations in the field. The 2025 theme is "Deep Tech & Engineering Excellence: Driving India’s Techade," highlighting advanced technologies like AI, robotics, and sustainable solutions driving India's progress.