+
Work on the Patna Metro Rail project is well underway
RAILWAYS & METRO RAIL

Work on the Patna Metro Rail project is well underway

The Patna Metro Rail project's construction is currently in full swing. Once the first of four Tunnel Boring Machines (TBMs) named Mahavir was lowered at the Moin-Ul-Haq metro station with a 1,494 m drive length in the direction of Patna University station, it made a significant advancement. With this, the Patna Metro's tunnelling project officially starts. The TBM device will be used to complete the underground tunnelling project.

The TBM Mahavir weighs approximately 420 MT, which is equal to the weight of 60 elephants. Together with the backup gantries, it consists of a cutter head, front shield, middle shield, and tail shield. The TBM's main body is around 9 metres long, and its entire EPB is about 95 metres long. The excavation diameter is 6,650 mm, with the precast ring lining with an outer diameter of 6,350 mm and inner diameter of 5,800 mm. The Chinese Railway Construction Heavy Industrial Corporation Ltd. (CRCHI) designed and produced these TBM machines.

The TBM Mahavir bearing with serial number DZ1090 was first put together on the ground before being lowered into the cradle with the aid of Mega Lifts. Strand jacks with a combined lifting capability of 325 MT were used to raise it. The TBM at the metro station has been lowered using a total of four strand jacks. The cradle will be raised by the Mega lift and then pushed up to the TBM lowering point (Launching Shaft). After skidding, the TBM will be lowered into the shaft, which is approximately 16 m below ground level.

On February 17, 2019, Prime Minister Narendra Modi laid the foundation stone for the projected Rs 133.65 billion Patna Metro rail project. It will have two corridors Danapur to Mithapur; and Patna Railway Station to New ISBT. After the Patna Metro project is finished, public transportation will be made easier in the city and its surrounding areas.

The Patna Metro Rail project's construction is currently in full swing. Once the first of four Tunnel Boring Machines (TBMs) named Mahavir was lowered at the Moin-Ul-Haq metro station with a 1,494 m drive length in the direction of Patna University station, it made a significant advancement. With this, the Patna Metro's tunnelling project officially starts. The TBM device will be used to complete the underground tunnelling project. The TBM Mahavir weighs approximately 420 MT, which is equal to the weight of 60 elephants. Together with the backup gantries, it consists of a cutter head, front shield, middle shield, and tail shield. The TBM's main body is around 9 metres long, and its entire EPB is about 95 metres long. The excavation diameter is 6,650 mm, with the precast ring lining with an outer diameter of 6,350 mm and inner diameter of 5,800 mm. The Chinese Railway Construction Heavy Industrial Corporation Ltd. (CRCHI) designed and produced these TBM machines. The TBM Mahavir bearing with serial number DZ1090 was first put together on the ground before being lowered into the cradle with the aid of Mega Lifts. Strand jacks with a combined lifting capability of 325 MT were used to raise it. The TBM at the metro station has been lowered using a total of four strand jacks. The cradle will be raised by the Mega lift and then pushed up to the TBM lowering point (Launching Shaft). After skidding, the TBM will be lowered into the shaft, which is approximately 16 m below ground level. On February 17, 2019, Prime Minister Narendra Modi laid the foundation stone for the projected Rs 133.65 billion Patna Metro rail project. It will have two corridors Danapur to Mithapur; and Patna Railway Station to New ISBT. After the Patna Metro project is finished, public transportation will be made easier in the city and its surrounding areas.

Next Story
Real Estate

Heena Lalwani Buys Rs 1.13 Billion Juhu Apartment

Heena Lalwani, promoter of Aatman Innovations Private Limited, has purchased a luxury apartment worth Rs 1.13 billion in Mumbai’s upscale Juhu locality, according to property registration documents accessed by Zapkey.com.The 9,862 sq ft apartment, located on the 10th floor of Lodha Developers’ Avalon Tower, was acquired at Rs 115,000 per sq ft and comes with five car parking spaces. The deal, registered on 18 August 2025, also included the payment of Rs 68 million in stamp duty and a Rs 30,000 registration fee.Lodha Developers did not respond to queries regarding the transaction, while the..

Next Story
Real Estate

Godrej Buys KPHB Land for Rs 7 Billion in E-Auction

An acre of prime land in Kukatpally Housing Board (KPHB), Hyderabad, was auctioned for Rs 7 billion, with the Telangana Housing Board generating Rs 5.47 billion from the sale of 7.8 acres through e-auction on 20 August 2025.The auction notification was issued last month, attracting bids from Godrej Properties, Aurobindo Realty, Prestige Estates, and Ashoka Builders, according to Board vice-chairman V.P. Gautham. With an offset price of Rs 4 billion per acre, the three-hour auction saw 46 bid increases, before Godrej Properties acquired the land.Revenue generated from the auction will be utilis..

Next Story
Real Estate

HMDA to Auction 93 Prime Plots in September

The Hyderabad Metropolitan Development Authority (HMDA) is preparing to conduct a three-day auction of prime open plots across Hyderabad, Rangareddy, and Medchal-Malkajgiri districts this September.According to official reports, the e-auction will take place on 17, 18, and 19 September, offering 93 plots. Of these, 70 are located in the Bachupally HMDA layout, with the remainder spread across Turkayamjal, Kokapet, Poppalguda, Chandanagar, Bairagiguda, Gandi Maisamma, Suraram, Medipally, and Bachupally village.The highest upset price has been fixed at Rs 175,000 per square yard for a land parce..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Talk to us?