Dekho yar what "will happen" is not the fact of the matter here. What should happen if everyone does it is what matters.
Where in Pindi and Islamabad do you get discount? And how many homes are surrounding those stations? I don't know of a single CNG station that is giving discount in Rawalpindi and Islamabad. And I don't know of any in Peshawar either I mean where are you coming from??? Just burhan ke saath there are a few who give discounts, that's it.
But, as I always do, lets assume for the sake of argument that there are 5 CNG stations in Pindi which give discount. Ab count karo, how many houses can praticaly surround one CNG station with a mileage of 5 minutes drive? MAX 10 houses per CNG station? Notice that most of the CNG stations are not inside any society because its illegal. But go ahead with that too. So 5x 10 = 50 houses. Each house can have 1 car. So 50 cars can be the lucky ones with 5 minutes of drive from a CNG station that gives discount. I am damn sure there is no CNG in Islamabad that gives discount. They would rather sell it higher than the government's rate if they could.
Here is the other side of the same scenario: Rawalpindi has probably more than 100,000 cars. so, 100,000 - 50 = 99,950. Does this figure really deserve that you advise them that 420 Rupees ki gas par you get 2.2 Rupess per kilometer? Talk standards here.
I don't know a single CNG station in Rawalpindi or Peshawar that is giving discount. Not a single. You tell me and I'll confirm that right away. Right now I am in Peshawar.
Getting 200+ Kilometers per cylinder is good for you, but its about the same thing as saying I will get 23 Kilometers/Liter. I would never tell any one to buy City because I am getting 23 KPL and they will also get this. You're doing this same thing, you're telling everyone that you MAY get 200 KPKG (while on petrol your car cannot even get 18KPL) and that based on this you're suggesting Petrol is twice the price of CNG.
I do not agree. Aur har woh banda disagree karay ga jis nay riyazi(ریاضی) main naqal nahi amri hoe gi.