CNG or Diesel..?

Well i don't know how many of you travel in private buses of Karachi city. I do. And I've been travelling in then for last 3 years. I've seen a very prominent and remarkable change in fares of buses.

        Initially when petroleum prices in Pakistan were less, I used to pay Maximum Rs. 15 to bus conductor. It increased in accordance with the increase in petroleum prices. And now.... its been reached to Rs. 20.

          I would say Rs.20 are fair enough according to present price of diesel touching Rs. 100. But there is other side of the story too... The buses have installed CNG kits in them which is available at Rs. 50 per Kg in Karachi. Whereas the fare table is according to the prices of diesel. So the transporters are making money. And its very very profitable t them. think yourself. The difference between Rs .50 and Rs.92. Think,,,!