In November 2025, the Indian Navy commissioned a new warship to enhance its anti-submarine and coastal defense capabilities. The correct answer to the question is INS Mahe. This event marks a significant step towards strengthening the maritime security infrastructure of India.

Let's examine why INS Mahe is the correct choice and rule out the other options:

1. INS Mahe: Named after the Mahe region in the Union Territory of Puducherry, INS Mahe is specifically designed for improved anti-submarine warfare and coastal defense, making it an integral part of the Indian Navy's strategy.
2. INS Vikrant: Although INS Vikrant is a significant addition to the Indian Navy, it is an aircraft carrier. Commissioned earlier, in 2022, it is not a new introduction in November 2025.
3. INS Arnala: While any future ships of the Arnala class may become relevant, there is no record of such a vessel being commissioned in November 2025 for the described capabilities.
4. INS Ikshak: This name does not correspond to a recently commissioned anti-submarine or coastal defense warship in 2025.

The commissioning of INS Mahe underscores the Indian Navy’s commitment to bolstering security along India’s extensive coastline and ensuring preparedness against potential submarine threats in the Indian Ocean region.

Note: While preparing for exams like SSC, UPSC, or similar, it is crucial to stay updated with recent developments in defense and other sectors as they are commonly featured in General Awareness sections.