It is difficult to detect a small commercial drone crossing national borders at night.

It is too small for most radar, too cheap to be worth a missile, and it can be carrying anything.

The answer that has proved practical is not to shoot it down but to cut the link it depends on, jamming the satellite navigation and the control signals so that it lands, returns or falls.

makes equipment that does this.

Incorporated in Pune in September 2014 by Harshad Dave and Sonika Sehraya, the company works on precision electronic systems: inertial sensors, radio frequency components, radar and automated test equipment, alongside the counter-drone line it is now known for.