I have re-visited the market on Sarurday. I visitged New Shahbaz Autos, Areej Traders, AK Autos and Abid Butt autos.
When I visited New Shahbaz Autos the owner was not present, however I told the whole story of my last visit to the guy there, he told me that they can't import only two sets of 18" alloys if we may order them a big quantity then it may be possible. I was totally disharted and took the visiting card of the shop.
Then I went to Areej traders, there I also repeated the same query but in vain. Bro they even don't bothered to get serious on my point so I went to the next shop AK traders. The perosn there told me that they have sold out many sets of 18" alloys but now they have no set lying. However, he told me to visit after two three months for the same.
After that I went to Abid Butt Autos, the person told me that you may go for Japaneese alloys from Bilal Gunj.
He also told me that one can find 18" alloys without disc brake and will fit in Pridor easily.