The worst service. Very unprofessional. They cancelled the bus to Pondicherry last minute and they kept us waiting. None of the calls were answered. I suggest no one takes this bus service ever.
The bus from Pondy to Bangalore was the one took. We boarded at Tiruvannamalai and the bus driver picked us at Ramanashram bus stop at 1 am midnight and dropped me at Ramamoorthy nagar. Smooth journey and comfortable