TNSTC have introduced economic air conditioned AC bus service otherwise known as EAC service from Tirupati to Chennai on daily basis. The schedule is operated by Villupuram Division of TNSTC.

Please find below timings / timetable from Tirupati to Chennai Koyambedu Dr. MGR bus stand.
- 4.00 am
- 5.20 am
- 9.40 am
- 11.40 am
- 2.00 pm
- 5.20 pm
- 8.00 pm
- 9.30 pm
The fare for the service per passenger is fixed at Rs. 205 cheaper than SETC air conditioned coach charges.
The features of the service are
- Fully Air Conditioned Coach
- Passenger Control AC Vents at Seats
- Reading Lamp
- Mobile USB charging ports
- Non Movable Reclined Good quality seats.
At present the schedule is not available for online booking for other schedules booking visit at tnstc.in
For more updated TNSTC SETC MTC information right place to visit is mytnstc.com
On 31July I traveled 7.30 PM AC bus. Seats space is very less. Rear side person moves to front when applying brake. Very uncomfortable
I traveled on 31July 2022 from Thirupathi to chennai. Seat space is very less and reclining. Very uncomfortable