{"data": {"schema": "publicfeed.update.v1", "id": "PIB-2328040", "url": "https://publicfeed.in/orders/PIB-2328040", "headline": "India begins second phase of indigenous submarine propulsion system testing", "summary": "The Ministry of Defence announced on 24 October 2026 the start of the 'Setting to Work Phase (STW)-2' for an indigenously developed Air Independent Propulsion (AIP) system Energy Module. This system, developed by the Naval Materials Research Laboratory (DRDO), is designed to increase the underwater endurance of diesel-electric submarines by reducing their need for atmospheric oxygen. Following rigorous testing for power production, the module will be handed over to Mazagon Dock Shipbuilders Limited for integration into Kalvari-class submarines in early 2027.", "key_points": ["AIP system reduces diesel-electric submarines' dependence on atmospheric oxygen", "Developed indigenously by Naval Materials Research Laboratory, DRDO", "Integration on Kalvari-class Submarines scheduled for early 2027"], "issued_date": "2026-10-24", "listing_date": "2026-10-24", "document": {"form": "Press release", "number": "2328040", "type": "Press release", "legal_character": "informational_communication", "functions": ["announces"], "cites": []}, "issuer": "Ministry of Defence", "department": "Ministry of Defence", "source": {"key": "pib", "name": "Press Information Bureau", "site": "pib.gov.in", "official_url": "https://www.pib.gov.in/PressReleseDetail.aspx?PRID=2328040"}, "topics": ["defence", "submarines", "indigenous technology"], "reader_topics": ["Government services"], "intent": "updates", "states": ["gj"], "national": false, "places": ["India"], "applies_to": ["Kalvari-class Submarines"], "dates": [{"kind": "event", "date": "2026-10-24", "wording": "October 24, 2026", "what": "Inauguration ceremony of Setting to Work Phase-2", "counts_from": null}, {"kind": "event", "date": "2027-01-01", "wording": "early 2027", "what": "Integration of AIP system on Kalvari-class Submarine", "counts_from": null}], "revision": "ad250e04305eb5b3", "recorded_at": "2026-10-24T14:24:53.950695+00:00", "provenance": {"method": "ai_summary", "automated_check": "pass", "human_review": "pending"}}, "meta": {"schema": "publicfeed.update.v1", "count": 1, "next": null, "plan": "free", "feed_updated_at": "2026-10-24T15:33:26.393042+00:00", "generated_at": "2026-10-24T16:10:10+00:00"}, "attribution": "Data: PublicFeed (https://publicfeed.in), summarising official documents linked in each record. Summaries are AI-generated and not legal advice; the official original is the authority.", "license": "https://publicfeed.in/terms#data-licence"}