Which amongst the following statements is/are correct about the INS Arihant? I. It is India’s first nuclear submarine. II. It is India’s first aircraft carrier. III. It has been indigenously built in India,

INS Arihant is India's first nuclear-powered ballistic missile submarine (SSBN) [t1][t4]. It was developed under the Advanced Technology Vessel (ATV) project and was launched in 2009, eventually being commissioned in August 2016 [t5][t9]. Statement I is correct as it is India's first indigenous nuclear submarine, completing India's nuclear triad [t5][t8]. Statement II is incorrect because INS Arihant is a submarine, not an aircraft carrier; India's first indigenous aircraft carrier is the INS Vikrant [t2][t6]. Statement III is correct as the vessel was indigenously designed and built at the Ship Building Centre in Visakhapatnam by the DRDO and other Indian agencies [t5][t7]. Therefore, statements I and III are correct, making option 3 (T and III only, where 'T' is a typographical error for 'I') the intended correct choice.

Sources

1. [1] https://www.bbc.com/news/world-asia-india-23648310
2. [2] https://en.wikipedia.org/wiki/INS_Arihant
3. [3] https://en.wikipedia.org/wiki/Arihant-class_submarine