The Metro Railway Kolkata said that no decision has been finalised for the shutdown of the entire 16.6 km long East-West Metro corridor for installation of the Communications-Based Train Control (CBTC) signalling system. It said that the implementing agency Kolkata Metro Rail Corporation Ltd (KMRCL) has recommended a 45-day block for linking the Sealdah-Esplanade stretch of the East-West corridor. "KMRCL has recommended a 45-day block of services from February 8 to March 24 to install a unified Communications-Based Train Control (CBTC) signalling system across the 16.6 km corridor from Howrah Maidan to Salt Lake Sector V. This is crucial for seamless direct connectivity between the two busy terminal railway stations of Howrah and Sealdah and the state IT hub in Salt Lake township. But we are yet to take a final call on the matter," the spokesperson said. He said that stopping train operation for such a long period will obviously lead to a situation where thousands of commuters will