Central Railway has announced a Mega Block on Sunday, May 10, affecting the Main and Transharbour lines. Fast services between Matunga and Mulund will be diverted to slow tracks from 11:05 AM to 3:45 PM, while Vashi/Nerul to Thane services are fully suspended from 11:10 AM to 4:10 PM. Western Railway remains clear for daytime travel.