Our Story
Three Decades of Precision Manufacturing
Founded in 1994 by Mr. Rajan Naroor, Efficient Toroidal Coil Corporation began as a specialist toroidal transformer winding shop in Pune's MIDC Bhosari industrial belt. What started as a single-product operation has grown into a multi-product facility supplying precision electromagnetic and resistive components to defence establishments, aerospace OEMs, and industrial customers across India.
Over three decades, ETCC has expanded into four product families — toroidal transformers, current transformers, wire-wound linear potentiometers, and power resistors — all manufactured and tested under one roof. Our defence-qualified components have been supplied for platforms including the Su-30MKI, Tejas LCA, and naval electronic systems.
Every unit we ship is individually tested — not sampled — because the applications we serve demand zero-defect performance. Our team brings hands-on domain expertise in electromagnetic design, winding technology, and precision resistive element manufacturing, supported by full lot traceability from raw material to dispatch.
