FOB is free on board. Here Forwarder takes responsibility to clear it from customs. For this additional document, you require is KYC similar to EXW. KYC includes your PAN card in case of proprietorship and company PAN card in partnership, pvt.ltd. FOB price varies according to the forwarder. In FOB you have to find forwarder by yourself.
EXW is cost effective then FOB. Let me provide you with detail of the process of EXW.
Initially, when we start business we go for small orders of 1-2 or max 3 cartons of products. Here we use international shipping companies such as FedEx, DHL to deliver products on our doorstep. These companies bring a product from China to India and also take responsibility to clear it from customs but here they will require your KYC documents. These companies will also pay customs on your behalf and when they come to deliver product to your doorstep then they will take all the customs charges from you which they have already paid on your behalf.