Dear sahilgoel_19,
Thanks for the questions. Here is the information you are looking for:
1. For state requirements and forms see the below link:
http://www.bluedart.com/regulatory.html
2. Yes, Sellers are required to use standard eBay packing material that will be provided to all sellers. Sellers are also required to print the online label and provide relevant documents during the handover process
3. Products categories have been identified for Surface, Air, Surface + Air. If you are listing item under Surface + Air category or Surface category, you will need to select "Surface" as Shipping method in the Sell Your Item form.
If you miss to select Surface, the default option is AIR and a relevant label / AWB is automatically assigned to the transaction. Depending the label / AWB, the shipment is processed through Surface or AIR. The mode is clearly mentioned on the label when you print it.
Regards,
Sameer