Kolkata: Metro Railway Kolkata said it has suspended train services from Howrah Maidan to Esplanade stations on Sunday due to "some urgent maintenance work".
A portion of the Howrah Maidan-Esplanade stretch is under the river Bhagirathi.
"There will be a complete traffic block due to some urgent maintenance work" along the stretch, according to a Metro Railway statement.
In Metro Railway parlance, traffic block means suspension of services.