Chennai Traffic Police — Worst behaviour & wrongly fined

Challan no: tn[protected]

I was wrongly fined by the traffic police stating dangerous driving and violation of rules. But I have not violated any rule nor drove dangerously. When I tried to explain the matter, they chose not to hear me and wrongly fined me.
I was about to make a proper U-turn and suddenly traffic police called me & said you have voilated the rules. But I did not. U-turn was valid. When I tried to explain, I was said that you're talkative and you must be fined. I tried my level best to explain the situation but none of them hear me out. After being fined, I was said that I should have explained the situation to avoid a fine.
When I did, no one came to hear me but after everything got over they say you should have said this before. They hardly understood the situation yet I am the one to pay.