ATVM doesnt require pin,its just only save time and haraashment to stand in the long que for buying ticket.it is for only unreserved ticket,mail ,express ,local superfas platfrom.
drawback:no so much bonus talktime compare to Metro Railway,Kolkata .
in 100 recharge only 105 you will get.and the fare will remain same.validity now is one year from last recharge.
while metro railway kolkata in 100...
more... gives 120,in 200 gives 250.
ALSO IN each fare rs one is deducted.like fare 4 become 3.fare 8 become 7,like this.
also another drawback:
lack of atvm machine in all major stations.only few very imp station have atvm machine.a people can reach a small station from big station buying ticket from atvm machine from big station.
but in less imp small station,there is no atvm machine.there you need to stand in the que.