Thanks Dhaya for your guidance, no problem with routes.
Came back very late last night, ~1.30AM. The trip was excellent. I have few pictures, will post tomorrow.
Great pictures RSM. Yeah toll is very high but with those roads only Chennai-Bangalore can be covered in no time. Infact we can reach Bangalore in less than 5 hours but it takes almost 6-7 hours in train!
BTW i warned you about the peak hour traffic in the evenings here!