Seventeen-year-old Hiten Dharpure of Nagpur has earned his second Guinness World Record with a breakthrough in miniaturized robotics. His latest achievement is the world’s smallest fully functional electro-mechanical robotic arm, measured at 39.25 mm.

According to the report, the robotic arm was developed in a home laboratory, highlighting how advanced engineering work is no longer limited to large institutions or industrial settings. The project used digital design and fabrication methods including CAD tools and 3D printing to create a working robotic system at an extremely small scale.

The record draws attention not only to Dharpure’s individual accomplishment, but also to the broader direction of robotics research. Building smaller, fully functional robotic components can be important for future applications where precision, compact size and mechanical efficiency matter.

With two Guinness World Records to his name at just 17, Dharpure’s work stands out as a notable example of student-led innovation in India. His achievement from Nagpur also reflects how home-based experimentation and accessible technology can contribute to meaningful advances in robotics.