1. Mumbai Madgaon Jan Shatabdi Exp going from B-Town towards Heaven on Earth, Konkan Railway.
(I seemed to enjoy Konkan between Mumbai-Madgaon you should take 1 full day and travel in 10103 Mandovi Exp or 50105 Sawantwadi Passenger. Both trains can give you stomach full journey and slowly slowly will make u to enjoy Konkan)