The Central Railway has deployed around 400 workers, in the presence of 35-40 police officers and 100 supervisors for the demolition process of the 150-year-old British-era structure, Carnac Bridge in South Mumbai.The Carnac Bridge dismantling process will last for 27 hoursThe whole dismantling process of the heritage bridge will last for about 27 hours and it began on Saturday night. The execution includes the cutting bridge into different pieces and then taking them to different locations.