The Premium Comeback!!
Visakhapatnam - Mysuru Premium Express via Samalkot, Rajamahendravaram, Eluru, Vijayawada, Guntur, Ongole, Nellore, Renigunta, Katpadi, Bengaluru and Mandya.
Personally, I like the premium trains (not Suvidha!!) due to the travel experiences I had.