Hill trains !!
Kailasgiri Hill train having 2 coaches will complete total journey in 20 min on Kailasgiri Hill. This train has 2 coaches, 1-AC and another Non-AC. You can see thick eastern ghat and Bay of bengal while travelling by this train. Its treat for eyes and Rail fans too :)
Presently 2 rakes are running on this track. Here is the Google earth view of it. This is inside Vizag city and 11 km from VSKP station.