Blue line buses are not run for benifit of people but they are run to make money for politicians or powerful persons who own them A bus may cost Rs.10 lakh but owner wants to make Rs.3000*300=900000 lakh Ruppes per year so 90% rate of return that is only possible if you are free to kill persons on the Road. This is the pure greed or day light robbery by owners which is killing the people and no body else.
