Central Railway is operating a mega block on Sunday on the suburban sections of the Main and Harbour lines to carry out engineering and maintenance work, affecting several local train services. On the Main Line, the block will be imposed on the CSMT-Vidyavihar UP and DOWN Slow lines from 10.55 am to 3.55 pm.

During the block, DOWN Slow services departing CSMT between 10.48 am and 3.45 pm will be diverted to the DOWN Fast line between CSMT and Vidyavihar. These trains will halt at Byculla, Parel, Dadar, Matunga, Sion, and Kurla before being diverted back to the Slow line at Vidyavihar

Similarly, UP Slow services departing Ghatkopar between 10.19 am and 3.52 pm will run on the UP Fast line between Vidyavihar and CSMT, with halts at Kurla, Sion, Matunga, Dadar, Parel, and Byculla

On the Harbour Line, the Kurla-Vashi UP and DOWN lines will remain under block from 11.10 am to 4.10 pm

Meanwhile, the Central Railway is operating a special traffic and power block at Diva station on three consecutive nights to facilitate the construction of the Kalyan-end Foot Over Bridge (FOB). According to an official statement, the block will be carried out from 1.20 am to 3.20 am, for two hours, on the nights of August 21-22, August 22-23 and August 23-24

The work involves construction of the Kalyan End FOB at km 42/128-130 at Diva station. The traffic and power block has been planned to allow the required infrastructure work to be carried out safely.