Mains Examination: General Studies-III: Achievements of Indians in science & technology; indigenization of technology and developing new technology What’s the ongoing story: India Friday inducted its third nuclear-powered ballistic missile submarine (SSBN), INS Aridaman, significantly strengthening its sea-based nuclear deterrent capabilities. The Indian Navy also commissioned the advanced stealth frigate INS Taragiri at a separate ceremony. — What is India’s “no first use” policy? — How did the No First Use doctrine come into being? — What are the advantages and disadvantages of the nuclear submarine? — What is the significance of establishing a nuclear triad? — What are the international conventions on use of nuclear weapons? — Which countries possess nuclear weapons? Key Takeaways: — The quiet commissioning of INS Aridhaman, which will significantly strengthen India’s sea-based nuclear deterrent capabilities, is in line with how the previous two indigenous Arihant-class submarines, INS Arihant and INS Arighaat, were inducted in 2016 and 2024 respectively. Story continues below this ad — INS Aridaman, a 7,000-tonne vessel, is believed to have eight vertical launching system tubes — …