The whole process begins with buying your fabric for the suit and shirt. Wool suits are the norm and the is a full range of fabrics from 4000 Rupees and up. There are textile shops all over, but I went with the recommendation of Raymond Fabrics. This is a fabric chain and charges a little more, but the quality, service and selection are all well above average. Once you choose your suit fabric, shirt fabric and the matching tie, you get to visit the Sons.
At Iqbal Sons, located in sector 17 shopping area (near a Sony Erikson showroom), you will get completely measured and asked what kind of style, cut, number of buttons etc. It's a cool experience. They take about a week to finish an order and charge about 3000 rupees ($60) to do a suit ($5) for a shirt, but they do a cracking job.
Matching shoes and belt to round off the equation, and now you can dress like you own that suit.