Tamil Nadu State Transport Corporation [TNSTC] — Bus Conductor Rude Behavior

This is to bring to your kind notice that, on my bus journey, I have encountered with a conductor who behaved rudely with me and shouted at me stating, I was sitting in a seat reserved for old people. I would have happily given my seat to the old man or woman even if it's not reserved for them. As I'm not from Tamil Nadu, I'm not able to read whatever is written inside the bus. The way he talked was completely rude and not at all acceptable. Please guide the staffs on how to behave with the passengers. If I'm taking a video and post it in social media, the impact would be different. But I don't want to do that nor I don't want to come across such things again.