Ashok Leyland Defence Systems is a Hinduja Group company involved in manufacturing military trucks such as the widely used Stallion troop carriers.

Ashok Leyland is ranked among the world's largest producers of medium duty defence vehicles today.

Its diesel engines have been used to power vehicles, boats, cranes, ground starter aggregates, compressors and generators.

Ashok Leyland has extended its automotive expertise to the defence sector, for over three decades, and has been a pioneer in the design, development and manufacture of special vehicles, serving the Indian Army.

[4] Ashok Leyland Defence Systems Ltd. (ALDS) also works with associate companies (Hinduja Group Companies) AVIA (Prague, Czech Republic), Optare (Leeds, UK), Defiance (Detroit, USA), Hinduja Foundries (Chennai, India) and AlbonAir (Dortmund, Germany) to leverage their capabilities.

The Stallion is used by the Indian Army across the varied climate and terrain of India from coastal operations to high altitude bases, from deserts to snow covered mountainous regions.

[10][11] Ashok Leyland Defence Systems (ALDS) has signed up with the Paramount Group, South Africa for the development and manufacture of Mine Protected Vehicles in India.