Inspecting the inside of a ship's hull, a fuel tank or a nuclear reactor is one of the most dangerous jobs in heavy industry.

It usually means shutting the equipment down, building scaffolding, and sending a person into a cramped, hazardous space where fatal accidents are a common occurrence.

Armatrix, a Bengaluru-based deeptech startup, is building robots to do that work instead.

Its machines have snake-like robotic arms, flexible enough to thread through tight, twisting spaces that a rigid industrial robot cannot reach.

The current approach is costly as well as slow.