I'll not name any shop exclusively and specifically (unless / until reqd.), however, most of the tyres selling shops in Blue Area Islamabad, and Kamran Market Rwalpindi Saddar sell smuggled tyres, transported through through Afghanistan and then sold in markets, and in most cases, tyres are in pretty bad shape.
My Question is: Why do we go to such shops, when official and authorised dealers of many tyres brands are there in the twin cities, which sell non-smuggled, genuine / legal import tyres, and some even with warranty.
To name a few; Tyre Point at Metro I-11, Islamabad, Marina Tyres for Dunlop, etc.
We just need to do a little research about them. It must be noted that tyres are a very important and crucial part of any automobile, and your life, safety, etc. depends a lot on it, so never cheap out on tyres.
A budget series, non-smuggled tyre seems much better to me than a premium series, smuggled tyre.