Online shopping

Hi ! recently i have started a online shopping store which sell clothes, accessories, footwear of both men and women. So, basically what i am doing here is I am sourcing my product from outside of india. My supplier/wholesaler are located in different part of globe i.e. australia, new zealand, us, uk, spain, china what i am doing here is. 1. I display there product on my site using there website data feed. ok? 2. now what customer do customer order on my site.ok? 3. then i forward order of customer product to one of the supplier site. ok? 4. supplier ships the product to customer directly. 5. I keep my commission. to be more clear My working is a supply chain management method in which I will not keep goods in stock but instead transfers customer orders and shipment details to either the manufacturer, another retailer, or a wholesaler, located in different part of globe ,who then ships the goods directly to the customer. So, my concern here is do i need to charge GST to customer at the checkout? as i need to pay GST on my commission right? how will my taxation work? how GST thing will work around?. I did some research and i found that I don't need to have any import export licence .. I have registered under sole proprietorship hope this will do for this kind of business!.. if not then please guide me in the forming entity.. Custom duties are responsibility of customer and i have mentioned it clearly on my site.