Dear kaleido,
From Puttaparti, you have to first come to Chennai, by train.
From Chennai, if you can afford, you can engage a taxi and
come to Tiruvannamalai, say in about 5 hours. In case,
you propose to stay in Tiruvannamalai, for more than 1 day,
then engage the taxi from Chennai for only one way. Otherwise
you can engage it for, both onward and return journey. The
Asramam and the Temple visits will, minimum take two full days
if you want to do justice to the visit. In case, you engage the
taxi only for one way, then you can get a taxi back to Chennai
in Tiruvannamalai. You can check up with Asramam authorities
for a taxi for your return journey.
Arunachala Siva.