Imagine starting your morning with breakfast in Mumbai and sitting down for lunch in Dubai — all within two hours. That bold idea is once again making waves online after a viral video reignited global interest in a proposed Mumbai–Dubai underwater train linking India and the UAE.
Dubbed the "Deep Blue Express" in social media clips, the concept envisions a high-speed or supersonic train running beneath the Arabian Sea, dramatically cutting travel time between the two countries. According to the video circulating on Instagram, the train could reach speeds of 600 to 1,000 km/h — potentially faster than conventional commercial flights.
What Is the Deep Blue Express?
The idea has captured attention because of what it represents: a radical shift in how people and goods could move between South Asia and the Gulf. Supporters of the concept claim such a system could revolutionise tourism, trade, and logistics, offering a seamless, weather-independent alternative to air travel — while delivering a once-in-a-lifetime passenger experience beneath the ocean.
The proposal was first floated by Abdulla Al Shehi, Managing Director of UAE-based private firm National Advisor Bureau Limited (NABL), which released a conceptual video suggesting a submerged rail link between Mumbai and Dubai. The envisioned route would span more than 2,000 kilometres beneath the Arabian Sea — roughly 40 times longer than Japan's Seikan Tunnel, currently one of the world's longest undersea tunnels at 53.8 km.
Is the Mumbai–Dubai Underwater Train Actually Happening?
While the visuals and narration in viral clips make the project sound imminent, experts urge caution. As of late 2025, there is "no confirmed construction timeline, official government announcement, or verified engineering rollout" for an operational underwater rail link between India and the UAE. The concept has appeared periodically over the years in futurist proposals and speculative infrastructure discussions, but it remains firmly in the visionary stage — not active development.
No official feasibility report, government funding, or bilateral agreement between India and the UAE has been announced in connection with the project.
The Engineering Challenges Are Immense
Building an underwater train across the Arabian Sea would involve extraordinary challenges — from deep-sea engineering and seismic safety to cost, maintenance, and international regulatory coordination. At more than 2,000 km, the tunnel would dwarf every existing undersea infrastructure project in history. These hurdles place the Deep Blue Express among the most ambitious transport ideas ever imagined.
Why the Viral Buzz Matters
Still, the renewed interest reflects a broader truth: the Gulf region is increasingly open to mega-scale, future-forward infrastructure thinking. The UAE has a proven track record of turning audacious visions into reality — from the Burj Khalifa to Hyperloop feasibility studies and the world's busiest international airport.
Whether or not breakfast in Mumbai and lunch in Dubai becomes reality anytime soon, the viral Mumbai–Dubai underwater train concept highlights how quickly tomorrow's ideas can capture today's imagination — and how the future of travel is being reimagined in real time.
Sources: News18, Khaleej Times, DNA India
