Mumbai-to-velankanni, via salem (tamilnadu)
u have 2 trains from cst-mbai: nagercoil exp & kanyakumari exp, next day arrival at salem junction (nagercoil- arpx at 4 pm & kanyakumari aprx at 9.30 pm). if u hiring a pvt car/taxi, u can leave immediately from salem , its almost a 5-hour drive to velankanni.
if u plan for bus travel, u have to take an auto from salem junction to new bus stand , aprx. rs.100/- fare for a 4 km drive).
at new bus stand, 2 options : 1) govt setc bus (bangalore-velankanni route) which leaves at 1.30 am , 2) pvt. bus operators like KPN or UNIVERSAL or SRS or KINGS TRAVEL (these are bangalore-velankanni route buses, available in seater, sleeper, volvo) , these buses leave at 12.30 am and 1.30 am, travel time almost 6 hours .