@All: Thankyou for your valuable suggestion.
@adeelhanif: very rightly said.. currently its 3 day loadshedding..more is expected in this winter..... 50L cylinder would be the right option if i plan to invest in CNG...
@mzahid: Yup bro your right. "Own" is more on VX Petrol. I am getting mehran VX petrol metallic for 530,000/-(ex Fact price: 500000/-, Own + Frieght: 30000/-) and Mehran VX CNG metallic for 585000/- (ex Fact price: 561000/-, Own + Frieght: 24000/-). The difference still stands at 55000/-. I still think saving 25 thousand after installation would get good alloys and tyres :). By the way do u have any idea what is expected booking time... Suzuki ppl say it would take 12weeks even more
Inshallah i would go for the Mehran VX Petrol in this week.