Keltron bags Rs.7-crore orders for defence systems The Aroor unit of Keltron has bagged order worth Rs.4.5 crore for the manufacture and supply of two Towed Receiver Array (TRA) for naval vessels through tender, from the Naval Physical and Oceanographic Laboratory (NPOL), Kochi, one of the major R&D laboratories of the Defence Research and Development Organisation (DRDO), an official release from Keltron said on Tuesday. The DRDO has developed the new TRA with enhanced detection capabilities than the existing ones, using advanced technologies. In six months Keltron, the manufacturing partner of DRDO for Sonar Arrays, has to supply the systems within six months. The Karakulam unit of Keltron in Thiruvananthapuram has also secured orders from Bharat Electronic Ltd., (BEL), Bangalore, worth Rs.2.85 crore for the supply of three third generation Underwater Acoustic Communication System. Keltron is the only company in India manufacturing and supplying the same for naval ships.