CHENNAI, October 10 — The National Institute of Ocean Technology (NIOT), an autonomous institution under the Ministry of Earth Sciences (MoES), on Saturday commenced integrated harbor and shallow-water wet trials of India's first fourth-generation manned deep-ocean submersible 'MATSYA-6000' at Kattupalli Port near Chennai, advancing the flagship Samudrayaan Mission.
Engineered to transport a three-member scientific crew to abyssal ocean depths of 6,000 meters (6 kilometers), MATSYA-6000 features a precision-forged 2.1-meter diameter personal sphere constructed from 80mm-thick titanium alloy using advanced electron-beam welding developed in partnership with ISRO’s Vikram Sarabhai Space Centre (VSSC). The hull is rated to withstand extreme hydrostatic pressures up to 600 bar while providing 12 hours of nominal operational endurance and 96 hours of emergency life support.
Oceanographers confirmed that following successful 500-meter shallow continental shelf validations, deep-sea expeditionary dives will target the Central Indian Ocean Basin (CIOB) to prospect for strategic Polymetallic Nodules (rich in cobalt, nickel, copper, and manganese) and chemosynthetic hydrothermal vent ecosystems. Upon full depth certification, India will join an elite global club of just five nations (USA, Russia, France, Japan, and China) possessing ultra-deep-sea human submergence capabilities.
India's Deep Ocean Mission (sanctioned with a ₹4,077 crore outlay across six thematic pillars), the engineering parameters of MATSYA-6000, Polymetallic Nodule exploration contracts granted to India by the International Seabed Authority (ISA, headquartered in Kingston, Jamaica under UNCLOS), and Blue Economy resource sustainability are core syllabus themes for UPSC Civil Services (GS-I: Resource Geography & GS-III: Science and Tech).