Had an excellent trip.
Chose this route finally Chennai-> Ulundurpet -> Attur -> Rasipuram -> Namakkal
Was able to cover this distance in 5 hours with a 15 minute stopover at Villupuram.
Excellent road overall with minimal traffic. State highway between Attur and Rasipuram but helped me save some distance and time.
Return trip - Followed the same route. Got Struck at Guduvanchery do to heavy traffic on Sunday late evening. Took 2.5 hours from Guduvanchery to Mambalam.
Thank you all for your valuable inputs.
Hope to have the TAI
stickers on for my next trip.