Keltron Resistors Ltd (KRL) located at Keltron Nagar in Kalliasseri Panchayat of Kannur District in the State of Kerala, beside NH-17, was incorporated on 29 April 75 as a subsidiary of Kerala State Electronics Development Corporation Ltd (KELTRON) The company was promoted to manufacture Carbon Film Resistors and Metal Film Resistors.

At present the company has as installed capacity of 217 million to manufacture Resistors of both type Carbon Film Resistors and Metal Film Resistors in wattages 0.125, 0.250, 0.500, 1.000 and 2.000 per annum. This unit manufacture Metal Film Resistors in both professional Grade and General Purpose application.

KRL markets its products through its Holding Company which is the Sole Selling Agent viz. Kerala State Electronics Development Corporation Ltd (KELTRON) through its various branches located in the major cities of India viz. Delhi, Lucknow, Kolkata, Mumbai, Chennai, Bangalore, Trivanduram etc. under the Brand Name KELTRON. In addition, there is a Marketing Head Office at Keltron Nagar, Kalliasseri PO, Kannur-670 652. Orders are entertained and executed through the various branches or Marketing Head Office.