The 12052/12051 Mumbai CSMT - Madgaon Junction Jan Shatabdi Express is a Superfast Express train belonging to Indian Railways - Konkan Railway division that runs between Chhatrapati Shivaji Maharaj Terminus and Madgaon in India.

During monsoon timetable, 12052 will not go in reverse direction due to time clash.

It is one of the fastest and longest route running Jan Shatabdi train in Konkan Railways and is immensely popular amongst the people travelling to Konkan and Goa.

This train runs via Dadar, Thane, Panvel, Chiplun, Ratnagiri, Kankavali, Kudal, Sawantwadi Road, Thivim to Madgaon Junction.

Currently as Konkan Railways have completed electrification, the train is now hauled by a WCAM3 from Kalyan shed.