PARLIAMENT QUESTION: INDIGENOUS PHWR

• PHWR (Pressurised Heavy Water Reactor) = India's workhorse nuclear reactor design using natural uranium fuel and heavy water (D₂O) as moderator/coolant; the 700 MWe indigenous PHWR is the largest domestically designed variant.
• Centre to a flagship "fleet mode" programme of 10 × 700 MWe PHWRs sanctioned in June 2017, anchoring the Nuclear Energy Mission targeting 100 GW by 2047.
• UPSC relevance: GS-III (Energy, Science & Tech, Indigenisation), Prelims (NPCIL/DAE/AERB, reactor sites).