There are many, many options to choose from. But firstly you need to consider what you want. Do you want to supply unboxed unbarcoded goods, do you sell standard parcel sizes or a big variety. Is your stock fast turnaround (less than two months) or is storage part of what you're seeking, do you want returns handling, 365 day operations. International shipping options, a choice of courier. Insurance/ compensation. Customer service?
If your items are typically under £100, barcoded,small parcel size and you have volumes of them then eBays partner offering orange connex is a good option. Customer service is integrated to deal with INR issues and sort customer refunds as part of their cover. Not so great if you have slower moving large items or low volumes of each stock item.
If you start to define the level of service you're looking for and your volumes you can hone in on the fulfilment solutions that closest meet your needs.
