Kolkata Metro Blue Line Recieved Funding of Rs 6,717.2 mn
RAILWAYS & METRO RAIL

Kolkata Metro Blue Line Recieved Funding of Rs 6,717.2 mn

The Centre has sanctioned Rs 6,717.2 million (mn) for an electrical infrastructure upgrade on the north-south corridor of the Kolkata Metro Blue Line. The works aim to raise train frequency, reducing peak-hour gaps from five minutes to two-and-a-half minutes by 2030, according to a Press Information Bureau release dated May 2. The package forms part of a broader plan to strengthen capacity on the city’s oldest metro corridor.

Of the total, Rs 2,910.6 mn will be deployed to install seven additional traction substations, while the remaining Rs 3,806.6 mn will fund the replacement of transformers, rectifiers, high-speed circuit breakers and a network of cables. Engineers explained that shorter headways require a traction substation at or near each station to ensure adequate power delivery. The new substations are intended to modernise ageing electrical systems and reduce dependence on older infrastructure.

The Blue Line was built in the 1980s and currently comprises 26 stations, 13 traction substations and five receiving substations. At present receiving substations accept 33 kV alternating current from the utility and step it down to 11 kV before feeding traction substations, which then convert power into 750 volts direct current for the third rail. Advances in technology now allow traction substations to handle 33 kV directly, diminishing the role of ageing receiving substations.

Eight additional traction substations would provide a near one-for-one ratio with stations and an extra unit will be placed between Dum Dum and Belgachia to address a longer gap. Two new substations at Chandni Chowk and Gitanjali are nearing completion and are due to be functional by July-end. The programme will replace the steel third rail with an aluminium one to reduce voltage drops, cut energy losses and improve acceleration, and will be implemented in phases, with most underground sections already upgraded and the elevated stretch between Tollygunge and Kavi Subhas remaining.

The Centre has sanctioned Rs 6,717.2 million (mn) for an electrical infrastructure upgrade on the north-south corridor of the Kolkata Metro Blue Line. The works aim to raise train frequency, reducing peak-hour gaps from five minutes to two-and-a-half minutes by 2030, according to a Press Information Bureau release dated May 2. The package forms part of a broader plan to strengthen capacity on the city’s oldest metro corridor. Of the total, Rs 2,910.6 mn will be deployed to install seven additional traction substations, while the remaining Rs 3,806.6 mn will fund the replacement of transformers, rectifiers, high-speed circuit breakers and a network of cables. Engineers explained that shorter headways require a traction substation at or near each station to ensure adequate power delivery. The new substations are intended to modernise ageing electrical systems and reduce dependence on older infrastructure. The Blue Line was built in the 1980s and currently comprises 26 stations, 13 traction substations and five receiving substations. At present receiving substations accept 33 kV alternating current from the utility and step it down to 11 kV before feeding traction substations, which then convert power into 750 volts direct current for the third rail. Advances in technology now allow traction substations to handle 33 kV directly, diminishing the role of ageing receiving substations. Eight additional traction substations would provide a near one-for-one ratio with stations and an extra unit will be placed between Dum Dum and Belgachia to address a longer gap. Two new substations at Chandni Chowk and Gitanjali are nearing completion and are due to be functional by July-end. The programme will replace the steel third rail with an aluminium one to reduce voltage drops, cut energy losses and improve acceleration, and will be implemented in phases, with most underground sections already upgraded and the elevated stretch between Tollygunge and Kavi Subhas remaining.

Next Story
Infrastructure Energy

India Adds Record 44.61 GW Solar Capacity in FY2026

India’s solar sector reached a milestone in FY2026, with cumulative installed capacity crossing 150 GW and annual additions hitting a record 44.61 GW, exceeding the government target of 34 GW and nearly doubling FY2025’s 23.83 GW. Distributed Renewable Energy contributed 16.3 GW, while PPA and C&I segments accounted for 34 per cent and 30 per cent, respectively.India has risen from 9th globally in 2015 to 3rd in cumulative solar capacity by 2025 and is set to become the world’s second-largest solar market in annual installations in 2026. Seven states, led by Rajasthan and Gujarat, ac..

Next Story
Real Estate

Abhee Ventures unveils Scottish-themed 45-acre township in Bengaluru

Abhee Ventures, a leading South Indian real estate developer, has announced “Codename New Dimension,” a 45-acre Scottish-themed residential township at Gunjur on Whitefield–Sarjapur Road, Bengaluru. Strategically located between Whitefield and Sarjapur Road, Gunjur benefits from strong connectivity to the Outer Ring Road IT corridor, ITPL, EPIP, the upcoming Dommasandra Metro Station, and the proposed SWIFT City and Peripheral Ring Road.The township, designed in collaboration with London-based UHA London and India’s RSP Architects, offers low-density living with 85 per cent open spaces..

Next Story
Infrastructure Urban

Hindalco unveils Eternia experience centre for high-performance aluminium windows

Hindalco Industries, the metals flagship of the Aditya Birla Group, has launched its Eternia experience centre in Lajpat Nagar, New Delhi, highlighting its high-performance aluminium window systems designed for India’s evolving construction sector. The company is also expanding its manufacturing footprint in North India with a new Bilaspur facility.Eternia has emerged as one of the fastest-growing brands in system aluminium windows, registering nearly 65 per cent CAGR over the last three years. With a nationwide network of 170+ channel partners across 100+ cities, the brand serves homeowners..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

-->