Dry fruits business is an import oriented business. The major trade gateways are Delhi (Kharibaoli Market) and Mumbai (Vashi Market). There are several players involved who together import almost few billion dollars of Nuts & Dry fruits. The supply chain is like this. Importer (Delhi/Mumbai)->Processor(Delhi/Mumbai)->Commission Agents->Big Wholesalers in(Delhi, Mumbai and other cities ) -> Retailer.
To start trading, it depends on where you want to position your self in the above supply chain.