The Indian Railways has completed a near complete electrification of its Broad Gauge (BG) network, with approximately 99.4 per cent of BG lines now electrified, marking one of the largest infrastructure transitions globally. The shift enables trains to run predominantly on electricity rather than diesel and strengthens national energy security by reducing exposure to international crude oil supply disruptions. The move forms part of a broader strategy to lessen reliance on imported fuel amid ongoing geopolitical tensions in West Asia. Electrification has cut diesel consumption significantly, with the railways saving 1,780 million (mn) litres of diesel in fiscal year 2024–25 compared with base year 2016–17, an overall reduction of 62 per cent since the adoption of electric traction. The electricity supply for the network is drawn from a mix of coal fired generation, hydroelectric power, solar energy and other renewable sources, which spreads operational risk. This diversified sourcing helps stabilise costs and reduces vulnerability to sudden crude oil price fluctuations. Financially, the transition has shifted a large share of traction spending towards electricity; during fiscal year 2024–25 the railways spent Rs 323.78 billion (bn) on traction energy, with the majority allocated to electricity rather than diesel. Electric traction therefore supports more predictable budgeting and operational planning and can improve resilience during periods of global market instability. The environmental benefits are also material as electric trains produce lower emissions than diesel locomotives, aiding efforts to reduce the railways' carbon footprint. Overall, electrification has enhanced the railway network's operational reliability and contributed to national energy independence by lowering consumption of imported diesel and increasing use of domestic electricity. Continued focus on renewable generation and grid stability is expected to further strengthen energy security while supporting sustainable transport goals. The railways' redesign positions the network to maintain services during external shocks and to manage future energy costs more productively.