This place is full of shops that sell all kinds of illegal goods, pirated software among other things. One needs to be very cautious and street smart to be able to shop here. The shopkeepers are cunning and thieving.
If they figure you can afford to pay, they will always overcharge for small items. Foreigners should completely avoid this place. Be mindful of your pockets, cellphone etc.
Even a small petty shop owner from this Bazaar owns ultra luxury properties in Delhi. You can imagine the kind of margins that these people make.
Always ensure to bargain and demand rock bottom prices. Foreigners should avoid this place. Once you visit a shop, the attendants will follow you and keep on babbling non stop and drive you mad till you buy something from them.
You may go for small items such as bags, belts etc. But electronics, DSLRs etc can be avoided. They have counterfeit goods of almost every expensive item. Maybe you can obtain spare parts of some items.