MUMBAI: Central Railway will operate a mega block on its suburban sections for maintenance work on CST-bound slow line between Kalyan-Thane from 11.15 am to 3.45 pm on Sunday. During this, CST-bound slow locals will not be available at Thakurli, Kopar, Diva, Mumbra and Kalva stations. On Trans-Harbour, a block will be taken from 11.30 am to 2.00 pm on up and down line near Thane and Nerul. Stay updated on the go with Times of India News App. Click here to download it for your device.