Central Railway managed to dismantle the British-era Carnac bridge between CSMT and Masjid stations in Mumbai before time on November 20 after operating a 27-hour traffic block that was supposed to end at 2 am on November 21, officials said. As many as 400 workers along with 30-35 officers and additional 100 supervisors were pressed into service to pull down the steel structure. A total of four cranes, three cranes of 350 tonnes and one of 500 tonnes, and also four Hydra cranes for shifting of release material were deployed.