<https://eurasiantimes.com/why-is-indias-drdo-going-gaga-over-new-propulsion-system-for-submarines/>
<http://schema.org/description>
"India’s DRDO has achieved a key milestone in the development of the Air-Independent Propulsion (AIP) system for the Indian Navy’s non-nuclear submarines that allows them to operate without using atmospheric oxygen."
<https://eurasiantimes.com/why-is-indias-drdo-going-gaga-over-new-propulsion-system-for-submarines/?amp>