Key Facts
Ships Commissioned
- INS Dunagiri: Project 17A stealth guided-missile frigate
- Largest and most heavily armed among the three vessels
- Designed for blue-water operations (can operate far from coast)
- Equipped with BrahMos surface-to-surface missiles
- MFSTAR radar system
- Medium Range Surface-to-Air Missile (MRSAM) system
- Advanced sonar and electronic warfare systems
- Anti-submarine weapons
- INS Sanshodhak: Survey Vessel Large (SVL)
- For coastal and deep-water hydrographic surveys
- Maps seabed features, water depths, navigational routes
- Surveys approach channels to ports
- Collects oceanographic data
- Equipped with Autonomous Underwater Vehicles (AUVs)
- Remotely Operated Vehicles (ROVs)
- Multi-beam echo sounders
- INS Agray: Arnala-class Anti-Submarine Warfare Shallow Water Craft
- Designed for littoral/coastal waters
- Detects and engages submarines in shallow waters
- Lightweight torpedoes
- Indigenous anti-submarine rocket launchers
- Shallow-water sonar systems
Builder
- Garden Reach Shipbuilders & Engineers (GRSE), Kolkata
- Indigenous content: More than 75%
Background and Context
Indigenous Shipbuilding Ecosystem
- GRSE is a premier shipyard under the Ministry of Defence
- Part of India's push for defence indigenization under Make in India and Atmanirbhar Bharat
- Indigenous content of 75%+ demonstrates significant progress in domestic shipbuilding technology
Project 17A Frigates
- INS Dunagiri is part of Project 17A (next-generation stealth frigates)
- Features reduced radar cross-section for stealth operations
- Integrates advanced weapons and sensor suites
Strategic Significance
Maritime Capability Expansion
- Blue-water operations: INS Dunagiri extends India's reach in distant seas
- Maritime Domain Awareness: INS Sanshodhak provides critical hydrographic data
- Littoral Defence: INS Agrray strengthens coastal and shallow-water security
Indian Ocean Region Dynamics
- Growing strategic competition in the Indian Ocean
- China's expanding naval presence (String of Pearls strategy)
- Increasing naval activities by Pakistan
- Need for comprehensive maritime coverage
Operational Coverage
The ships together provide:
- Surface warfare capability (INS Dunagiri)
- Sub-surface detection (INS Agrray)
- Hydrographic survey support (INS Sanshodhak)
Related Initiatives
- Maritime Capabilities Perspective Plan: Long-term naval capability building roadmap
- Naval Indigenization Plan: Reducing dependence on foreign suppliers
- Defence Research and Development Organisation (DRDO): Indigenous weapon systems development
- BrahMos Missile: Jointly developed with Russia, equipped on INS Dunagiri
Key Technologies
| Ship | Key Technologies |
|---|---|
| INS Dunagiri | BrahMos missiles, MFSTAR radar, MRSAM, stealth design |
| INS Sanshodhak | AUVs, ROVs, multi-beam echo sounders |
| INS Agrray | Lightweight torpedoes, indigenous rocket launchers, shallow-water sonar |