Indian Railways — general ticket travellers allowed into reservation bogies

I'm travelling in east coast express s6 coach on 17th oct, 2017 and i have seen that the reserved compartment has been fully filled with general ticket passengers and the tc has taken 100/- each for illegally allowing them to stay there. He clearly stated it costs 500/- to write a receipt. Those passengers didn't allow me to sit in my own seat even. They molested me by trying to sit on my berth when i was trying to sleep (Side lower). They literally occupied my whole seat and made me to get out from there. I scolded them to move away from there but they didn't. The tc had allowed all of them to stay in the coach itself.
I experienced hell in the compartment...
I question the authorities as they, who are responsible to take care of these things, are actually encouraging them.
I demand the higher officials to respond to this and take stringent action.