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-acid batteries, nickel cadmium batteries and pure lead thin plate batteries. This segment serves various sectors, such as telecom, uninterruptible power supply, railways, and others. Defence & Aviation batteries segment's products include nickel cadmium sintered plate batteries, silver batteries, thermal batteries and submarine batteries. Electronics segment is organized into two divisions, namely railway electronics and electric mobility. Its train collision avoidance system (TCAS), called as Kavach by Indian Railways, addresses the safety issues.