Indian Railways — most ladies are harassing first class pass holders

I am a first class pasa holder and one day i boardes into the general mst ladies coach as i was late and the train was about to leave. Although there were empty seats the ladies their did not allow me to sit.
We i asked y so they said we are pass holders and the seat is fixed for us. And one of our colleague will be boarding now so she needa this seat. I was like what is this even though the seats were empt these ladies didnt allow me to sit and i reached my destination standing.