Karnataka State Road Transport Corporation [KSRTC] — Unprofessional behaviour by driver

The staff refused to load my personal language and when asked to do it they behaved unprofessional and when to threaten me that you can't do anything".
The issue pertains to the banglore to hyderabad bus on eighteenth of may at six o clock.

Thanks to your well trained driver this will be my last journey in your so called airavat.

And they charged rs 60 for language, good knows where is this policy mentioned from your end.