Prime Minister Narendra Modi laid the foundation stone for the Mahi-Banswara Nuclear Power Plant in Rajasthan on 25 September 2025. The project is part of development works worth over ₹1.22 lakh crore at Banswara, Rajasthan. The plant will be built on 1,366 acres and will have a total installed capacity of 2,800 MW. It is planned with four indigenous 700 MWe Pressurized Heavy Water Reactors. The total project cost is ₹42,000 crore. The first unit is reported for commissioning in 2031, with the later units expected at six-month intervals.

For exam preparation, the update connects Science and Technology with Rajasthan's economy, infrastructure and energy security. A Pressurized Heavy Water Reactor uses heavy water, or deuterium oxide, as both moderator and coolant. It can use natural uranium as fuel, so the topic also links to domestic capability and self-reliance in nuclear energy. In the Rajasthan context, the Rajasthan Atomic Power Station at Rawatbhata near Kota is already an important nuclear facility; the Mahi-Banswara plant is being described as the state's second nuclear power station.

For RAS and UPSC-style preparation, this event can generate direct factual questions as well as mains points on clean electricity, baseload energy, regional development and large infrastructure investment. The key facts to retain are: location in Rajasthan, 2,800 MW capacity, 1,366 acres of land, four indigenous 700 MWe reactors, ₹42,000 crore cost, and the first unit reported for 2031.