Eway bill , invoicing and ITC reversal

When we generate Ewaybill then we are liable to mention HSN in part A of EWB-01, what we can do in following case :
We sold a product suppose HSN on that product is 5201
And for its movement it is necessary to send it in container and suppose HSN for container is 4301 and it has been charged in basic price of goods only
So in this case either we have to mention HSN code for both the products in EWAYBILL and invoice or what we can do
As if in case we show it separately, it will be like we have supplied container free of cost because we will not be writing any amount in taxable value of container in either invoice or Ewaybill. If treated as gift will attract provision of blocked credit as per 17(5).

But actually it has not been gifted so what has to be done in this case for 1. Preparation of invoice 2. Preparation of Ewaybill 3. ITC reversal ??