INS Arnala

Source:  IT

Context: The Indian Navy will commission INS Arnala, the first of the 16 Anti-Submarine Warfare Shallow Water Crafts (ASW-SWC) at Visakhapatnam.

About INS Arnala:

  • What is INS Arnala?
    • INS Arnala is the first indigenously-built Anti-Submarine Warfare Shallow Water Craft (ASW-SWC) ship.
    • It will enhance India’s capabilities in coastal surveillance, mine-laying, and sub-surface operations.
  • Built By: Designed and constructed by Garden Reach Shipbuilders & Engineers (GRSE), Kolkata in partnership with L&T Shipbuilders.
  • Operational Region:
    • Designed for coastal waters and the Indian Ocean Region (IOR).
    • It supports Low-Intensity Maritime Operations (LIMO), Search and Rescue (SAR), and Subsurface Surveillance.
  • Key Features of INS Arnala:
    • Length: 77.6 meters, Displacement: 1490+ tonnes, Speed: Up to 25 knots, Endurance: 1800 nautical miles (~3300 km).
    • First Indian naval warship powered by Diesel Engine–Waterjet combination.
    • Integrates 80% indigenous systems from BEL, Mahindra Defence, MEIL, and L&T.
    • Supports AI-driven combat systems, sonar arrays, and mine-laying gear.

About Arnala Fort:

  • Located in: Arnala village, Vasai taluka, Maharashtra, near Mumbai’s northern coast.
    • Also known as Jaldurg or Janjire Arnala, it is surrounded by sea waters.
  • Historical Significance:
    • Originally built by Sultan Mahmud Begda in 1516.
    • Captured and ruled by Portuguese, Marathas, Mughals, and Peshwas over time.
  • Architectural Features:
    • Rectangular fort structure, three main entrances, and bastions on the north.
    • Houses temples like Tryambakeshwar, Bhavani Mata, Kalika Mata, and Mahadev.
    • Though food is scarce on the fort, water is available in wells, showcasing sustainable coastal defence design.