Consider the following:

INS Arihant

INS Arighat

INS Sujata

INS Shardul

Which of the above is/are India's indigenous submarines?

Question

INS Arihant – Indigenous Submarine: India’s first indigenously developed nuclear-powered ballistic missile submarine (SSBN). Built under the Advanced Technology Vessel (ATV) project. Commissioned in 2016, part of India’s nuclear triad.
INS Arighat – Indigenous Submarine: Second nuclear-powered ballistic missile submarine (SSBN) of the Arihant class. Also developed indigenously under the ATV project.
INS Sujata – Not a Submarine: An indigenously built Sukanya-class patrol vessel. Used by the Indian Navy for offshore patrol duties.
INS Shardul – Not a Submarine: A Shardul-class amphibious warfare ship. Designed for troop transport and amphibious operations.

GKToday Admin · Accepted Answer

Only two

INS Arihant – Indigenous Submarine: India’s first indigenously developed nuclear-powered ballistic missile submarine (SSBN). Built under the Advanced Technology Vessel (ATV) project. Commissioned in 2016, part of India’s nuclear triad.
INS Arighat – Indigenous Submarine: Second nuclear-powered ballistic missile submarine (SSBN) of the Arihant class. Also developed indigenously under the ATV project.
INS Sujata – Not a Submarine: An indigenously built Sukanya-class patrol vessel. Used by the Indian Navy for offshore patrol duties.
INS Shardul – Not a Submarine: A Shardul-class amphibious warfare ship. Designed for troop transport and amphibious operations.