SOURCE: KR RAMESH KUMAR / FOR MY TAKE / IDRW.ORG
The Defence Research and Development Organisation (DRDO) proposed a conventional attack submarine (SSK) design but the proposal was rejected by the Directorate of Naval Design (DND), which was revealed by Saurav Jha, Editor-in-Chief of Delhi Defence Review. This seems to be the second rejection of the indigenous conventional attack submarine first being two designs of Super Kalvari class with and without air-independent propulsion (AIP) technology embedded.
Project-75I is heading to a single vendor situation with only a South Korean offer of KSS-III submarine design with Indian specific requirements seems to be a clear winner unless the Indian Navy learns how Koreans developed KSS-I, which itself was based on Type 209 diesel-electric attack submarine that was license-built from Germany in the country.
KSS-I to KSS-III was steady progress from developing a 1,200-ton displacement vessel to 1,800-ton displacement to now 3,000-ton KSS-III submarines incorporating 80% of the indigenous content. KSS-III batch-II will have 3,600 tons (surface displacement) and will be capable of carrying 10 submarine-launched ballistic missiles, 4 more than KSS-III batch-I.
A country that can develop Nuclear submarines that have manufactured six French Kalvari class submarines locally can also work with local partners to develop enhanced Super Kalvari class submarines that can be meet most of the requirements that can be the same class as KSS-III submarines that we might be procured from South Korea.