HBL Engineering Ltd, formerly HBL Power Systems Limited, is an India-based research-based engineering company. The Company's principal activities include manufacturing of different types of batteries, e-mobility and other products. It is also engaged in service activities related to its products. Its segments include Industrial batteries, Defence & Aviation batteries, and Electronics. The Industrial batteries segment's products include lead batteries (valve regulated lead acid and pure lead thin), nickel cadmium batteries and lithium batteries. This segment serves various sectors, such as telecom, railways, and others. Its Defense segment has three divisions batteries, electronic fuzes for ammunition and other defense products. Electronics segment is organized into two divisions, namely railway electronics and electric mobility. Its flagship products in this vertical are the KAVACH, which is a train collision avoidance system.