I dont know if you'd find it in rabi centre - they sell mostly kacha cloth there and those types of outfits that you just have to cut and sew together which already have the designing done on them.
I would suggest you check out some boutiques. You can get a whole listing of them on visagepk dot com. Also, pak towers has some really great stores - like Maria B, etc. Zamzama blvd would be the place to go to get trendy clothes. All the hot boutiques are there.
pp yaar u can easily find them in khi…no probs…as someone else suggested if u want to find clothes and get then tailored ,rabi is the best place and also Ashiana at clifton…but if u wanna go for some botiques try zamzama and fashion mags they have all the adresses of the popular botiques n outlets