I booked a ticket for KPN - Non A/c SLEEPER. I got into bus in Krishnagiri and slept. After I reached Salem, they asked all passengers to shift to A/C semi sleeper bus. Yeah, It is A/C, But who cares. I didnt want A/C and I wanted to just sleep. Finally, I got a back pain because of sitting in a semi sleeper for long time and lost sleeping though. F#CK YOU K.P.N. Travels.