Here are bus timings from Bangalore Chennai bus :
Sea Bird Tourist
Volvo A/C Multi Axle SemiSleeper (2+2)
23:30
06:00
6:30 hrs
Hebron Transports
Scania AC Multi Axle Semi Sleeper(2+2)
23:45
06:00
Hebron Transports
Volvo A/C Semi Sleeper (2+2)
23:30
05:30
Dreamliner Travels
A/C Sleeper (2+1)
23:45
06:15
Jabbar Travels
Non A/C Seater/Sleeper (2+1)
23:00
06:30
M M K Travels
A/C Sleeper (2+1)
23:15
06:00
APR Travels
A/C Sleeper (2+1)
21:30
05:30