Delhi Transport Corporation [DTC] — Cruelty happening in cluster buses

Hello Sir/Ma'am,
A terrible incident happened to my sister today. She is working in a company and today when she was coming home by Orange cluster bus number DL 1P D 4___(last 3 digit is not confirmed)
Time - 05:45PM-06:20
Bus Route - 114 Auchandi Border.
The behavior of the conductor of that bus was very rude, cheap and cruel. The conductor threatened a passenger and said in the local language, ''eb ude aake bnaa dunga or tu kuch na kr skega mera'' which means, 'I will see you and you will not be able to do anything.'
And not only that.. He told the bus driver Deepak that "Sudden braking of the bus... so that all the passengers get jolted and fall down."
An elderly man who was physically weak, very politely asked the driver to open the back gate.. but the merciless driver refused and went to the back gate and technically closed the gate from the top compartment.
The old man was supposed to get down at Bramshakti hospital stand, but he could not reach the front door and due to which he had to get down at Begumpur.
Thankyou,
And please take some action against driver and conductor.