Infrastructure

The project is focused on upgrading the existing 1×25 kV electric traction system to a modern 2×25 kV system. In simple terms, this means trains will receive a stronger, more stable and more efficient power supply. A railway line with better traction power can handle heavier trains, support higher traffic density and improve reliability during regular operations. For passengers, this can translate into smoother services and better punctuality. For industries, it can support faster movement of freight and stronger logistics connectivity.

The rise of solar power reflects a deep national shift. India is no longer treating renewable energy as a supporting source of electricity. Solar energy has become part of the country’s development model. It powers homes, farms, industries, public buildings, railway stations, villages and large solar parks. It is helping India reduce dependence on fossil fuels while expanding electricity access across regions.

The announcement came during the event “Two years of PM Suryaghar Muft Bijli Yojana: Scaling the solar home to 1 crore rooftops,” where the Ministry of New and Renewable Energy reviewed the progress of one of India’s most ambitious residential clean-energy programmes. The scheme was launched on 13 February 2024 with an outlay of ₹75,021 crore and has now become the world’s largest domestic rooftop solar programme.

The numbers show the scale of the shift. India has crossed 155 GW of installed solar capacity, strengthening its progress towards the national goal of achieving 50 percent of installed power capacity from non-fossil fuel sources. This also supports India’s Nationally Determined Contributions under the global climate framework, where the country has committed to a cleaner and more sustainable power mix.

The MT-07 tunnel is 417 metres long and 14.4 metres wide. It has been designed to carry both up and down tracks of the bullet train corridor, allowing high-speed trains to pass through the mountain section with the required safety clearance and structural stability. The tunnel was excavated through controlled drilling and blasting from both ends, supported by continuous engineering supervision and safety protocols.

The scale of this shift is significant. India’s live data centre capacity had reached around 1,700 MW by the end of 2025, and another 500 MW is expected to be added in 2026. This means the country is moving from a fast-growing digital market to a serious data infrastructure destination. As more Indian businesses shift to cloud platforms, AI tools, digital payments, e-commerce systems, online education, telemedicine, gaming, streaming and government digital services, the requirement for secure and high-capacity data centres is rising sharply.

The scale is massive. BSNL placed orders for one lakh indigenously developed 4G sites for pan-India deployment. As of 28 February 2026, the government reported that 97,906 4G sites had been installed and 96,103 sites were on-air. This is a full national rollout, covering urban pockets, rural belts, border regions, hilly terrain and locations where commercial viability has always been difficult for private operators.

Hydrogen trains fit into this larger ecosystem as a specialised solution for routes where full overhead electrification involves terrain, heritage, environmental or economic complexity.