The Delhi Metro Rail Corporation has begun an extensive mid-life refurbishment programme for its older Blue Line trains to bring them in line with current safety standards while improving passenger comfort and reliability.
The initiative focuses on upgrading the earliest batch of rolling stock, introduced between 2002 and 2007, which have now completed nearly two decades of service. As part of a broader plan covering both Red and Blue lines, a total of 70 trains are being refurbished in phases.
So far, 31 trains have undergone upgrades, with work progressing steadily across multiple phases. The first two stages have already seen significant progress, while the third phase will cover 22 Blue Line trains and is scheduled for completion by November 2027.
Senior officials, including Managing Director Dr Vikas Kumar, recently reviewed one of the newly refurbished trains before it was put back into passenger service.
The upgrades go beyond cosmetic changes. Interiors, including passenger areas and driver cabins, have been refreshed to address wear and tear, while electrical systems have been overhauled to improve operational reliability.
New-generation passenger information systems have been installed, offering real-time updates on routes, station arrivals and travel timings through digital displays.
Safety enhancements form a key part of the overhaul. Coaches are now equipped with advanced fire detection systems featuring smoke and heat sensors, alongside upgraded circuit protection components to minimise risks during operations.
In response to evolving commuter expectations, charging points for mobile devices and laptops have also been added across coaches. Improved communication systems now allow passengers to connect with train operators during emergencies.
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