After alighting take complaint book from TTE or train guard and lodge about this. Or else if you are going by chance to amritsar, then raise objection regarding coaches and display board with the NR ASR officials.
And regarding unreserved passengers,instead of RPF, this problem can be solved by the help of TTE only. Why didnt you complain to TTE or the train guard at BSR ?
And if you next time travel with e ticket, all essential contact numbers are provided on the print out. Do watch out next time.