Arjun Mk-1A

India's upgraded Arjun main battle tank, designed around increased protection, improved observation and fire-control systems, and a 120 mm rifled main gun.

Overview

The Arjun Mk-1A is an upgraded production variant of India's indigenous Arjun main battle tank. Designed by the Defence Research and Development Organisation (DRDO) and assigned for manufacture at Heavy Vehicles Factory in Avadi, it incorporates dozens of changes over the earlier Arjun Mk 1. The package emphasizes protection, observation, night fighting, navigation and digital control rather than a fundamental redesign of the tank.

At a reported weight of approximately 68.5 tonnes, the Mk-1A is among the heaviest main battle tanks intended for Indian Army service. Its mass supports substantial protection and a large four-person fighting compartment, but also increases dependence on suitable bridges, railcars, transporters, recovery vehicles and maintenance infrastructure. The program's immediate significance therefore lies as much in India's ability to produce and sustain the tank as in its individual combat features.

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