How to expose Director and managers rude behaviour in TCS?

Only power is to master tech skills and create your dependency so that you can resign anytime you want

Just resign there's nothing you can do
Complain in tcs, you will be tortured more till you leave
Complain outside, you will be out on your ass and no one will hire Expose in social media you will be fired

Sadly, we cannot

No way you can do it. If you don't like the only way is out of the gate

They are Aashole people, that's why