Take Train From Chennai to Vridhachalam from vivridhachalam , neyveli its20min journey by road... from viridhachalam passenger train also available
There are so many train are between chennai to vridhachallam
Morning take Guruvayoor exp
Afternoon time best is Vaigai Express
Evening...
more... time kaniyakumari exp, Anantapuri exp, pearl city exp, pothigai exp, Pandian exp , rock fort exp are best