Context: Defence Research and Development Organisation has successfully demonstrated a 30-kilowatt (kW) MKII Laser Directed Energy Weapon system (Sahastra Shakti). It masters the technology of disabling missiles, drones and smaller projectiles.
Relevance of the Topic: Prelims: Key facts about the Laser-Directed Energy Weapon system.
Sahastra Shakti Laser Weapon System (MK-II)
- Indigenously developed by: DRDO
- The 30-kilowatt laser weapon system uses six 5 kW high-energy laser beams to damage or destroy enemy targets.
- Designed to: counter aerial threats such as drones, swarm UAVs, and helicopters within a range of 5 kilometers. It can be used to destroy enemy surveillance sensors and antennae.
- Effective Range: Up to 5 kilometres (under current test conditions)

Key Features
- It is equipped with a 360-degree Electro-Optical/Infrared sensor enabling precision targeting of aerial threats.
- It offers instantaneous engagement and low per-shot cost, making them ideal for neutralising low-Radar Cross Section threats (like drones and incoming munitions).
- It features advanced electronic warfare capabilities, including jamming communication and satellite signals.
- It can be adapted for both ground-based and shipborne applications.
Working of Sahastra Shakti Laser Weapon System
The Sahastra Shakti laser weapon system is mounted on two 4×4 vehicles.
- The first vehicle carries a Command and Control unit (C2): It is equipped with an electro-optical (EO) targeting and tracking system which ensures real-time 360 degree tracking and targeting of airborne threats.
- The second vehicle houses the Beam Control Unit: It directs the powerful laser beam toward the target based on the inputs from C2.
Significance:
- The low-cost alternative reduces the reliance on expensive ammunition while also lowering the risk of collateral damage. It significantly enhances India’s counter-drone and air defence capabilities.
- The success has put India in the exclusive club of nations (US, Russia and China) which have the high-power Laser-DEW system.
The advancement aligns with global trends emphasising high-power lasers for missile defense and counter-drone operations. It strengthens India's position in modern warfare.
