You can buy bitcoins from localbitcoins.com where a similar feedback system is in place as us here, plus escrow which further increases credibility. When there is a relative dip in bitcoin price, that would be your cue to buy. Still you have to pay a little more than actual price because of conversion from paper to crypto which varies from seller to seller. Once you have bitcoin on localbitcoins.com, then conversion to other currencies is no problem. If you are buying no more than 5k PKR worth of it, I can sell you directly. If you want more of it, then localbitcoins.com is the most convenient that I have found.