Matsya-6000: India’s Fourth-Generation Deep-Ocean Submersible successfully Completes Wet Testing

India’s Fourth-Generation Deep-Ocean Submersible ‘Matsya-6000’ has successfully completed wet testing at the harbour, paving the way for conducting shallow-water demonstrations at depths reaching up to 500 meters by the end of 2025.

To ensure a seamless integration of all systems within its exo-structure, the Matsya first underwent a comprehensive series of integrated dry tests over a 500-metre operational range. Following the successful completion of these tests, it was transported to the shipbuilding facility at Kattupalli Port, near Chennai for



conducting wet tests and demonstrating the submersible functionality.

Under the government’s Deep Ocean Mission initiatives, the Ministry of Earth Sciences has entrusted the National Institute of Ocean Technology with the designing and developing of Matsya-6000, as part of the Samudrayan Project. This cutting-edge submersible is engineered to accommodate three humans within its compact 2.1-meter diameter spherical hull, marking a significant milestone in India’s ocean exploration capabilities.