You are saying tha on name of express they are looting. It sounds like you are in favour of Passenger/DEMU train.
I am talking about General Seating in Express trains.
Which bus service provider permits you to travel sleeper coach with confirm seat in just 70 rs for 60 kms.
I have travel on this route (Jp-Sikar) more than 200 times within last 6...
more... year. And reality is that if you don't have confirmed booking in SLEEPER BUS they will disturb once a passenger with booked seat boards the bus.
May be you are habitual to travel in buses without confirm advanced booking.